Cursor not changing to resize tool

Recently when I try to adjust the length of a clip in Wavelab 12 the cursor will not turn into the resize tool. It changes for a split second then back to the pointer If I fiddle around long enough I can grab the clip and resize even though the correct tool is not showing. But basically resize is broken for me. This started when I got a new screen with a resolution of 2560 x 1440 (which is the same resolution as the one I replaced before I had the problem). I’m not having a problem with any other applications that uses resize (and I have a number that do) so it’s not a system wide issue. Does anyone have any idea what could be causing this or what I can do about it? Thanks for any ideas.

Mac or PC???

It’s on a Mac. I’m actually getting the problem with Cubase as well but just not as often.

Can it have something to do with macOS?

even check out the manual online or pdf, to get ideas…

Resizing Clips

regards S-EH