After downloading a file that I worked on exclusivley in illustrator, I noticed that part of the content didn't save. Specifically, the text in the document is missing: only the background and the image used are included.

MacOS Monterey v 12.1
Adobe Illustrator 29.7.1

I usually work with different asset files for UI/UX prototypes (buttons, icons, info cards, etc.), and I save everything in Adobe Creative Cloud. I left this file complete and untouched for a month while I received feedback from the client, and after I decided to open it again to work on changes, I discovered that many text elements had completely disappeared from the file. Some were grouped, others weren't, but the strange thing is that elements with any specific characteristics didn't disappear; rather, they seemed to have been deleted randomly: some artboards retain the buttons and icons without the text, while others are completely identical, retaining the text. The fact is that the entire interface uses the same font family (and for other projects as well), which is the first time this has happened.

I don't know if attaching the Illustrator file is helpful, since it simply appears without text boxes and I'm currently rewriting and updating the file. However, I would like to find some explanation for what happened, since I simply saved the file to the cloud and after a while, when I tried to reopen it, I found it incomplete, with no error message in the file or any evidence of recent editing. If there's any risk of losing some or all of the content in the files we upload to the cloud, it's better to know so we have a local backup copy.

Edit: couldn't upload the Ai file or the fonts to this post, it marked me Error 500 and to try again later. But I attach some screenshots comparing the arbtboards of the affected file (red assets) and other similiar I have (golden assets) to show the missing texts.

Hi Egor, I've shared the file with the team via email and Adobe Cloud sharing. It's an invitation that is yet to be printed so there are some details there that I would prefer to keep private. Thank you!

A similar problem reported here: https://community.adobe.com/t5/illustrator-discussions/fonts-are-not-showing-when-opening-file-shows-fine-in-preview/m-p/15484300

Files! the team needs files to start the investigation! Please share!

Illustrator 29.7.1

Open files that have been fine for awhile, fonts are not showing. Layer with the font is still there fine, just completely empty now. Doc Info shows no embedded fonts.

Preview screen in Illustrator landing page is showing the rendered fonts just fine.

Please fix this bug ASAP!!!

All of my texts have disappear except when I go on creative cloud and look at the preview of that exact same file, you clearly can see there are texts. Why is this happening?

Ninna, please share a link to this document with the team. Send it over to sharewithai@adobe.com (in this case put the link to this report for tracking it — http://illustrator.uservoice.com/forums/601447/suggestions/50388027) or just share it here in comments if you are OK to make it public.