Select All Markers greyed out

I am doing a complex edit in a Montage using Wavelab 7 with lots of markers.
I want to select all markers and delete all markers.
I’ve done this a million times with Wavelab 6 but for some reason “select all markers” is greyed out in Wavelab 7.
I can delete them one at a time, but I want to get 'em all with two clicks like I used to.
Am I missing something?

Try switching to another wave, then back to the desired WaveLab. Does it work?

Odd. It works now. Something got “fixed” when I relaunched the next day to work on it.