Hi @P4uloC4mpos,
Thanks for sharing the update, I understand how frustrating it is to see this issue return, especially in the prerelease build.
I checked with the product team and they were not able to reproduce this on their end. To take this further, could you please confirm if you’re seeing the issue in the latest release version, InDesign 21.3, as well?
It would also help if you could share a few additional details. Please check the memory pressure on your system by opening Activity Monitor, going to the Memory tab, and noting whether the graph shows green, yellow, or red when the issue occurs.
If possible, please try launching InDesign via Terminal using this path:
/Applications/Adobe\ InDesign\ 2026/Adobe\ InDesign\ 2026.app/Contents/MacOS/Adobe\ InDesign\ 2026
Then open the History panel and continue working until the undo issue appears. At that point, please copy the Terminal output and share it with us.
You can send these details to sharewithID@adobe.com so the team can review them further. You can also share the files here or via direct message using a cloud service like Google Drive or Dropbox.
You can also refer to this discussion for additional context: https://community.adobe.com/questions-671/indesign-21-2-undo-greyed-out-and-history-panel-blank-on-macos-tahoe-and-ventura-1551926?postid=7543173#post7543173
Looking forward to your update.
Abhishek
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