Hi Maxim,
I run to the same problem state above...the block editor just open up automatically when I click on a random block that I created. No no attribute on it. Its very annoying to always close the block editor and waste of time. The only solution I found to correct partially this problem is to change the variable of " BLOCKEDITLOCK to 1" but with that...it also mean if i need to edit a block I need to change the variable back to '0" ....any other solution you help me with? any variable i should be changing???

FYI Im using autocad Lt 2021 Mac... this problem never occur to me before....

Thks in advance!!