Snap function not working on some applications.

Hi There... having an issue that seems to have popped up in the last month or so where there are SOME windows that don't seem to activate the snapping feature. Most do, however, a couple of them don't. One in particular that I am experiencing this with is "Kiwi for Gmail". When I grab and drag that window, the snapping functionality doesn't work. See this video:

Chrome works fine, Kiwi doesn't. There's another app or two that this is happening with, but most work as expected.

Any idea what could be causing this? For the record... the Rectangle application DOES indeed work for snapping these windows that are problematic for snapping with BTT.

BTT Version: 3.389
MacBook Pro (2019)
MacOS Version 10.15.6