Hello Alexander
I've done some investigating myself and it seems it was related to installation and first launch as opposed to file specific. If installed on clean Mac without Rosetta then after install of Rosetta and launch I get the flickering window if quit all and restart then works fine. Looks like Apple should be forcing a restart after Rosetta install.
Sorry for the delay in coming back to you, one of those weeks 
All the best
Seems like macOS 13 Ventura is the gift which keeps on giving, I'm 99.9% sure Enscape was working under macOS 12 Monterey on MacBook Air M2 but I just get a flickering window now, see enclosed video [apologies for coffee shop background noise]. Specification of MacBook Air M2 is M2 8 core CPU 10 core GPU with 24Gb unified memory.
Thanks in advance
Nick
Many thanks, back up and running again.
Now if you could only optimise for M1 Ultra / M2
All the best
Nick
Just updated to macOS Ventura and seems to have broken Enscape 1.1.19+921 with error message “EnscapeApplication” is damaged and can’t be opened. You should move it to the Bin.
Thanks
Nick
