Fonts changing in files when opened in Illustrator 29.5.1
Existing files created in illustrator (on a different desktop) when opened in v29.5 & v29.5.1 display incorrect fonts - the font is changed to a completely different font (e.g. Myriad Pro will be changed to Times New Roman) throughout the document. All the text in that font family is changed, but other fonts used in the document will display correctly. The font is installed correctly on the system and the changed font can be changed to the correct font by selecting the font from the illustrator font list. The thumbnails display correctly in Bridge before opening in illustrator. Reverting illustrator back to v29.4 resolves the problem

The team intends to have this fixed
-
Peter Petersen commented
After the update, this message now appears, saying that my files were created in a different version. But it should be backwards compatible.
New idea from comment
This comment was upgraded into a new idea: Illustrator wrongly says texts were created in different version of Illustrator -
Peter Petersen commented
I have saved a bunch of illustrator files a few days ago, openning them in acrobat it shows the correct fonts, but while oppening thoses files in illustrator all fonts were replaced by another fonts automatically.
-
Howard, some changes were made to how missing fonts are handled... Ai now tried to render the outlines for these, even if the fonts are missing, until you try to edit the text. But something goes odd here... the team is aware of this.
The docs use RichelaKids, Southern, and CestLavieRegular — just to be sure, are these all are installed at YOUR side when you open the files?
Can you share the links to these fonts, so the team can try to replicate the behavior? If you can share the font files — please do, send them to sharewithai@adobe.com, and put the link to the bug report so that they can track it: http://illustrator.uservoice.com/forums/601447/suggestions/49871712 -
Howard davies commented
2 of the source files are attached below along with the screenshots showing how they display on the different versions of Illustrator. These files were created on a different MacBook and opened on my macBook as shown - note this is the same file opened on the same desktop using different version of illustrator. If the fonts are corrected and saved on v29.5.1 then the display correctly after that
-
Howard, please share the files that get altered with the team for reviewing. You can do it here in the comments if you are OK with sharing them publicly, or send them to sharewithai@adobe.com (in this case please mention the link to this report for tracking purposes: http://illustrator.uservoice.com/forums/601447/suggestions/49871712)
It’d be helpful if you shared some screenshots of how it looks originally and how 29.5.X displays it, with the Character panel visible.