Tag window column width

At some point Sketchup Pro stopped allowing me to adjust the widths of the tag window columns. I use a Mac. Is this a bug?

Yes. It happens randomly on Macs.

thanks. It seems to be permanently ‘stuck’ in this non adjustable state

Have you tried the old switch off and back on again routine?

Have you tried some of the methods in other posts?
Drag the panel away from others, resize it by dragging the right bottom corner all the way up and than to the left.

If that doesn’t work, replacing the .nib file works more permanently