Hi,
I updated our Studio box to an Ardour 9.2 nightly (9.2.18) and this is my first extended use of Ardour 9+. For me grabbing the edges of regions to resize them is very difficult, hovering the mouse will change the cursor for fades as easily as always but unless I repeatedly change the amount of timeline zoom the cursor is very stubborn to change to the resize mode. Anybody else notice this?
Yes. I have noticed it since the rc-9 series. I can’t find a recipe to reliably reproduce this. For me it happens mostly with freshly opened sessions (created with older versions).
To resize a region I have to first start a fade, than it works normally. The bug happens only the first time I try to resize a specific region. But not every region. It seems random, I have to test more when I have more time.
Yes for me triggering a fade also seems to enable resizing but not always. For a minor bug this is very annoying if you’re tracking or editing lots of regions 
Was it a session newly recorded with Ardour 9 or an already existing one?
So far observed in new sessions.