Created attachment 107795 [details] Troublesome file - makes Krita spin up CPU and takes forever to load Attached file makes Krita load forever. The file was saved normally - but Krita crashed between sessions. Same symptoms on these versions: 3.2.1 3.1.4 4.0.0 pre-alpha
I can confirm the issue with this file.
Your suspicion about a clonelayer creating a dead-lock seem to be correct. I've tried unzipping the .kra and editing the maindoc.xml. Removing the "pose export" layer block starting on line 270 - and zipping it back up - will let Krita load it again.
The following "leg r" clone layer block from the attached file seems to be the culprit: <layer collapsed="1" y="-251" colorlabel="0" name="leg r" compositeop="normal" channelflags="" opacity="255" uuid="{8d999277-25cc-47a1-ba02-40ab6cf17e68}" locked="0" clonefrom="leg" nodetype="clonelayer" filename="layer146" clonetype="0" visible="1" clonefromuuid="{c35dcb55-c5c5-47a0-8a15-56dae3654b8b}" x="-239"> <masks> <mask y="250" name="Transform Mask 1" uuid="{1026da29-b104-480c-8c6e-a4599aea992b}" locked="0" nodetype="transformmask" filename="mask147" visible="1" x="-67"/> </masks> </layer>
Git commit ae1d6fcdd4f8b269d5cbcd95c42d8dcebe90b247 by Dmitry Kazakov. Committed on 27/03/2018 at 12:32. Pushed by dkazakov into branch 'master'. Do not try to infinitely iterate through all the pixels of the device if its extent is empty For historical reasons we use weird format for "empty extent" mark, the rectangle is set to QRect(-int32max, -int32max, 0, 0). Using such mark is a bit of dangerous, because mere operating with it causes integer overflow and, therefore, infinite loop. I'm not sure if it is safe to change this mark into standard Qt's one... M +4 -0 libs/image/kis_paint_device.cc https://commits.kde.org/krita/ae1d6fcdd4f8b269d5cbcd95c42d8dcebe90b247
Git commit 4f11b96603d7d2c43600dcf62ee4c7db506443f1 by Boudewijn Rempt, on behalf of Dmitry Kazakov. Committed on 03/04/2018 at 11:16. Pushed by rempt into branch 'krita/4.0'. Do not try to infinitely iterate through all the pixels of the device if its extent is empty For historical reasons we use weird format for "empty extent" mark, the rectangle is set to QRect(-int32max, -int32max, 0, 0). Using such mark is a bit of dangerous, because mere operating with it causes integer overflow and, therefore, infinite loop. I'm not sure if it is safe to change this mark into standard Qt's one... (cherry picked from commit ae1d6fcdd4f8b269d5cbcd95c42d8dcebe90b247) M +4 -0 libs/image/kis_paint_device.cc https://commits.kde.org/krita/4f11b96603d7d2c43600dcf62ee4c7db506443f1