Hi,
Had a weird problem crop up, I can use the first state of buttons with additional options under them as normal, but holding the mouse down does not activate the flyout so I can only access the first option. Argh! This affects the whole UI, Track View, everything - any button with the triangle indicator in the corner. Max 2017 SP3 on my current scene, it works fine after a reset, previous scene is OK and other scenes are fine. Mouse and Wacom exhibit the same behaviour. Right clicking the transform buttons brings up the dialog as expected, tooltips work fine, just no flyout.
Next I noticed, after going back to the previous version of my file, that paint deformation is also broken. It also requires the mouse to be held down, so I guess they're related.
Any ideas, folks? Maybe hitting Max with a big stick whilst cackling maniacally? I'm going to revert to the previous version of my scene but I'd like to know why oh why it's done this so I'm ready if it happens again.
Cheers,
triff