Captivate either freezes or crashes upon publishing to scorm

Hi everyone, I'm a recent user, so I might not be aware if this issue has been flagged or experienced by others. After having to recreate my whole 10Go project from scratch due to supposedly corrupted quiz slides, I now face new problems :  

#1. I open the project, then it totally freezes, can't do anything, but when force quit, it doesn't mention "Not responding".

#2. When project is open, sometimes the top menu disappears.

#3. If I miraculously succeed in publishing to scorm (xAPI standard), the zip file is only 10% of the project's size, otherwise it crashes before the end of the process.

#4. At the beginning of the timeline, on all slides, there is a little "face-like" icon, and according to support agents it means something is corrupted but no one seems to know why...

Note: I work on Macbook pro M2, Captivate 12.6

I'm desperately needing help to solve these. Even if agents are showing good intentions, Adobe's support is absolutely not up to the level we can expect from such an established company. I'm very disappointed with the product so far. Thanks in advance.