Yes… agreed. And as has also been mentioned in there, a ‘patch 2’ is hot on its heels - being worked on right now.
I’ll add.. @MixMinded - can you supply a small ‘dummy’ project perhaps for @Robin_Lobel to investigate.? Key things here may lie in this being a Dolby Atmos/Renderer based project..
Any more detail you or @fakemaxwell can supply about your systems etc, too.? How long a file are you editing in SLP for example…?
There’s a thread in the SLP forum pages reporting similar/other concerns with ‘Undo’ in SLP 13 already… perhaps worth adding to the thread.?
No undo while selection is active - Bug? - SpectraLayers - Steinberg Forums
I’d suggest this could absolutely do with reporting over there in the SLP forum… be as detailed as possible… and/or run a search for similar threads.?
Good luck.!