Using the undo command in AGi32 18.1 undoes multiple actions. For example, if I draw 3 objects and then click "Undo" all three objects are deleted. The expected behavior would be to just delete the most recent object created, as was the case in AGi32 17.
Yep, it's pretty annoying. I just came across that one myself.
Even worse, I was working with the latest build in a file created in a previous build (not sure if that has anything to do with it), and I used Luminaire Swap (window) to change from one fixture type to another for two windows of luminaires.
The first fixture is an individual downlight, the second fixture is a group of two downlights forming a multi-part luminaire.
After an undo procedure I ended up with some of the fixtures retaining both the original and new types, so I could see three fixtures in clusters. This did not, however, have much rhyme nor reason - for instance for one of the 'windows' there was 8 inserted locations in a row, but the 2nd, 4th, 5th and 8th fixtures had the doubling up.
Looks like this is fixed in 18.2.
I'm no longer having this problem.