calibre 7.17The latest version of PDF conversion fails in large areas

[fengli]

Examples of errors：
calibre, version 7.17.0 (win32, embedded-python: True)

Spoiler:

Rendered: feed_8/article_23/index_u89.html in 12.1 seconds (1/131)
Rendered: feed_8/article_22/index_u36.html in 12.5 seconds (2/131)
Rendered: feed_8/article_16/index_u102.html in 12.7 seconds (3/131)
Rendered: feed_8/article_11/index_u104.html in 13.5 seconds (4/131)
Rendered: feed_8/article_10/index_u127.html in 14.2 seconds (5/131)
Rendered: feed_8/article_14/index_u98.html in 14.5 seconds (6/131)
Rendered: feed_8/article_21/index_u74.html in 14.5 seconds (7/131)
Rendered: feed_8/article_13/index_u71.html in 16.7 seconds (8/131)
Rendered: feed_8/article_15/index_u17.html in 16.8 seconds (9/131)
Rendered: feed_8/article_6/index_u103.html in 5.4 seconds (10/131)
Rendered: feed_8/article_5/index_u37.html in 6.4 seconds (11/131)
Rendered: feed_8/article_2/index_u70.html in 5.8 seconds (12/131)
Rendered: feed_8/article_3/index_u61.html in 6.8 seconds (13/131)
Rendered: feed_8/article_0/index_u128.html in 5.3 seconds (14/131)
Rendered: feed_7/article_14/index_u115.html in 6.3 seconds (15/131)
Rendered: feed_7/article_13/index_u31.html in 7.8 seconds (16/131)
Rendered: feed_7/article_11/index_u76.html in 7.6 seconds (17/131)
Rendered: feed_7/article_12/index_u88.html in 10.4 seconds (18/131)
Rendered: feed_7/article_10/index_u116.html in 8.0 seconds (19/131)
Rendered: feed_7/article_7/index_u52.html in 7.3 seconds (20/131)
Rendered: feed_7/article_9/index_u14.html in 12.6 seconds (21/131)
Rendered: feed_7/article_4/index_u111.html in 5.9 seconds (22/131)
Rendered: feed_7/article_6/index.html in 12.7 seconds (23/131)
Rendered: feed_7/article_5/index_u34.html in 8.7 seconds (24/131)
Rendered: feed_7/article_8/index_u58.html in 20.0 seconds (25/131)
Rendered: feed_7/article_2/index_u100.html in 3.6 seconds (26/131)
Rendered: feed_7/article_1/index_u19.html in 3.1 seconds (27/131)
Rendered: feed_6/index_u18.html in 2.9 seconds (28/131)
Rendered: feed_7/article_0/index_u126.html in 4.5 seconds (29/131)
Rendered: feed_5/article_23/index_u54.html in 4.8 seconds (30/131)
: Loading not complete after 60 seconds, aborting.
Rendered: feed_8/article_20/index_u95.html in 60.0 seconds (31/131)
: Loading not complete after 60 seconds, aborting.
Rendered: feed_8/article_24/index_u94.html in 60.0 seconds (32/131)
Rendered: feed_5/article_24/index_u38.html in 6.6 seconds (33/131)
Rendered: feed_5/article_22/index_u57.html in 4.1 seconds (34/131)
Rendered: feed_5/article_19/index_u32.html in 3.2 seconds (35/131)
Rendered: feed_8/article_1/index_u40.html in 49.9 seconds (36/131)
Rendered: feed_8/article_4/index_u87.html in 52.4 seconds (37/131)
Rendered: feed_5/article_18/index_u97.html in 5.1 seconds (38/131)
Rendered: feed_5/article_16/index_u86.html in 4.4 seconds (39/131)
Rendered: feed_5/article_17/index_u60.html in 7.5 seconds (40/131)
Rendered: feed_8/article_17/index_u51.html in 73.7 seconds (41/131)
Rendered: feed_5/article_12/index_u16.html in 3.6 seconds (42/131)
Rendered: feed_5/article_15/index_u30.html in 8.0 seconds (43/131)
Rendered: feed_8/article_18/index_u53.html in 74.9 seconds (44/131)
Rendered: feed_5/article_13/index_u84.html in 4.1 seconds (45/131)
Rendered: feed_5/article_14/index_u113.html in 7.6 seconds (46/131)
Rendered: feed_5/article_9/index_u114.html in 5.7 seconds (47/131)
Rendered: feed_5/article_11/index_u69.html in 7.7 seconds (48/131)
Rendered: feed_5/article_7/index_u75.html in 6.4 seconds (49/131)
Rendered: feed_5/article_10/index_u50.html in 8.0 seconds (50/131)
Rendered: feed_8/article_12/index_u62.html in 82.8 seconds (51/131)
Rendered: feed_5/article_6/index_u33.html in 7.2 seconds (52/131)
Rendered: feed_8/article_7/index_u35.html in 71.8 seconds (53/131)
Rendered: feed_5/article_4/index_u41.html in 3.4 seconds (54/131)
Rendered: feed_5/article_5/index_u73.html in 4.8 seconds (55/131)
Rendered: feed_8/article_19/index_u96.html in 85.7 seconds (56/131)
Rendered: feed_5/article_0/index_u9.html in 3.5 seconds (57/131)
Rendered: feed_5/article_3/index_u55.html in 6.0 seconds (58/131)
Rendered: feed_8/article_8/index_u68.html in 83.3 seconds (59/131)
Rendered: feed_8/article_9/index_u39.html in 98.5 seconds (60/131)
Rendered: feed_7/article_3/index_u90.html in 61.8 seconds (61/131)
Rendered: feed_4/article_13/index_u72.html in 29.1 seconds (62/131)
Rendered: feed_4/article_14/index_u110.html in 29.5 seconds (63/131)
Rendered: feed_4/article_12/index_u83.html in 29.2 seconds (64/131)
Rendered: feed_4/article_9/index_u112.html in 22.3 seconds (65/131)
Rendered: feed_5/index_u20.html in 33.8 seconds (66/131)
: Loading not complete after 120 seconds, aborting.
Rendered: feed_5/article_20/index_u23.html in 60.0 seconds (67/131)
: Loading not complete after 120 seconds, aborting.
Rendered: feed_5/article_21/index_u26.html in 60.0 seconds (68/131)
Rendered: feed_4/article_4/index_u8_split_000.html in 2.5 seconds (69/131)
Rendered: feed_4/article_10/index_u7.html in 34.8 seconds (70/131)
Rendered: feed_7/index_u25.html in 77.6 seconds (71/131)
: Loading not complete after 60 seconds, aborting.
Rendered: feed_5/article_8/index_u85.html in 60.0 seconds (72/131)
Rendered: feed_4/article_8/index_u92.html in 38.7 seconds (73/131)
Rendered: feed_3/article_9/index_u22.html in 9.9 seconds (74/131)
Rendered: feed_4/article_7/index_u125.html in 30.7 seconds (75/131)
Rendered: feed_8/index_u15.html in 122.5 seconds (76/131)
Rendered: feed_4/article_5/index_u101.html in 27.1 seconds (77/131)
: Loading not complete after 60 seconds, aborting.
Rendered: feed_5/article_1/index_u93.html in 60.0 seconds (78/131)
Rendered: feed_3/article_6/index_u12.html in 6.9 seconds (79/131)
Rendered: feed_4/article_3/index_u27.html in 27.2 seconds (80/131)
Rendered: feed_3/article_7/index_u66.html in 8.7 seconds (81/131)
Rendered: feed_3/article_5/index_u11.html in 8.4 seconds (82/131)
Rendered: feed_4/article_4/index_u8_split_001.html in 33.9 seconds (83/131)
Rendered: feed_3/article_4/index_u43.html in 9.6 seconds (84/131)
Rendered: feed_4/article_0/index_u63.html in 30.5 seconds (85/131)
Rendered: feed_2/index_u13.html in 3.4 seconds (86/131)
Rendered: feed_3/article_3/index_u106.html in 11.1 seconds (87/131)
Rendered: feed_3/article_1/index_u91.html in 10.5 seconds (88/131)
Rendered: feed_4/article_6/index_u28.html in 44.9 seconds (89/131)
Rendered: feed_1/article_26/index_u10.html in 14.4 seconds (90/131)
Rendered: feed_1/article_25/index_u1.html in 13.0 seconds (91/131)
Rendered: feed_1/article_24/index_u117.html in 10.7 seconds (92/131)
Rendered: feed_5/article_2/index_u99.html in 84.9 seconds (93/131)
Rendered: feed_1/article_23/index_u47.html in 9.3 seconds (94/131)
Rendered: feed_4/index_u24.html in 47.2 seconds (95/131)
Rendered: feed_1/article_27/index_u121.html in 19.7 seconds (96/131)
Rendered: feed_3/article_0/index_u64.html in 29.9 seconds (97/131)
Rendered: feed_1/article_20/index_u21.html in 10.2 seconds (98/131)
Rendered: feed_1/article_28/index_u29.html in 28.0 seconds (99/131)
Rendered: feed_1/article_17/index_u6.html in 10.7 seconds (100/131)
Rendered: feed_3/index_u65.html in 35.5 seconds (101/131)
Rendered: feed_1/article_16/index_u5.html in 13.0 seconds (102/131)
Rendered: feed_1/article_29/index_u48.html in 34.6 seconds (103/131)
Rendered: feed_1/article_22/index_u120.html in 20.3 seconds (104/131)
Rendered: feed_1/article_15/index_u77.html in 16.0 seconds (105/131)
Rendered: feed_1/article_21/index_u45.html in 27.4 seconds (106/131)
Rendered: feed_1/article_10/index_u79.html in 9.6 seconds (107/131)
Rendered: feed_1/article_18/index_u44.html in 24.8 seconds (108/131)
: Loading not complete after 120 seconds, aborting.
Rendered: feed_3/article_8/index_u81.html in 60.0 seconds (109/131)
Rendered: feed_1/article_8/index_u80.html in 9.4 seconds (110/131)
Rendered: feed_1/article_19/index_u109.html in 30.2 seconds (111/131)
Rendered: feed_1/article_9/index_u122.html in 14.9 seconds (112/131)
: Loading not complete after 120 seconds, aborting.
Rendered: feed_3/article_2/index_u49.html in 60.0 seconds (113/131)
Rendered: feed_1/article_2/index_u108.html in 10.2 seconds (114/131)
Rendered: feed_1/article_7/index_u56.html in 15.4 seconds (115/131)
Rendered: feed_1/article_4/index_u107.html in 14.8 seconds (116/131)
Rendered: feed_1/article_1/index_u78.html in 12.6 seconds (117/131)
Rendered: feed_0/index_u2.html in 5.0 seconds (118/131)
Rendered: feed_1/article_11/index_u4.html in 29.1 seconds (119/131)
Rendered: feed_1/article_12/index_u118.html in 31.8 seconds (120/131)
Rendered: index_u123.html in 8.1 seconds (121/131)
Rendered: feed_1/article_5/index_u59.html in 25.8 seconds (122/131)
Rendered: feed_1/article_0/index_u3.html in 21.5 seconds (123/131)
Rendered: feed_1/article_14/index_u119.html in 46.1 seconds (124/131)
Rendered: feed_1/article_6/index_u42.html in 31.5 seconds (125/131)
Rendered: feed_4/article_11/index_u82.html in 167.1 seconds (126/131)
Rendered: feed_1/article_3/index_u124.html in 106.0 seconds (127/131)
Rendered: feed_1/index_u105.html in 157.9 seconds (128/131)
Rendered: feed_1/article_13/index_u46.html in 283.3 seconds (129/131)
Rendered: feed_4/article_2/index_u129.html in 368.3 seconds (130/131)
Rendered: feed_4/article_1/index_u67.html in 515.8 seconds (131/131)
Load of clbr://internal.invalid/book/feed_3/article_2/index_u49.html failed

Please take a look, thank you very much

[fengli]

After returning to version 7.16, I batch converted PDF and everything was normal.

[kovidgoyal]

This will be an incompatibility between your system and Qt WebEngine, which is used for conversion to PDF. You dont tell us anything about your system, so no way to help you. I suggest you stay with 7.16

[fengli]

Originally Posted by kovidgoyal

This will be an incompatibility between your system and Qt WebEngine, which is used for conversion to PDF. You dont tell us anything about your system, so no way to help you. I suggest you stay with 7.16

Hello expert, thank you very much for your attention. I am using win11 24H2 26100.1301. After rolling back to version 7.16, everything is normal when batch converting epub to PDF, but I don’t know the specific reason. Maybe the new version of calibre7.17 is not compatible with this win system version?

[JSWolf]

Originally Posted by fengli

Hello expert, thank you very much for your attention. I am using win11 24H2 26100.1301. After rolling back to version 7.16, everything is normal when batch converting epub to PDF, but I don’t know the specific reason. Maybe the new version of calibre7.17 is not compatible with this win system version?

This is a beta preview version of Windows 11. It's not the officially released version to everyone. So the problem could very well be in Windows if it's not in calibre.

[kovidgoyal]

No its compatible with that version of windows, there is just something about your *particular system* that it is not compatible with. You will find all the Qt WebEngine based components in calibre such as the viewer and editor also wont work.