Attempting and failing to select links from the links panel
Windows 10 OS, Illustrator v 27.0.
Several weeks ago, the links panel went wonky. When I right click on a link, it will either not select the link at all, or it will un-select as soon as I release the mouse button. I will need to click on it multiple times in order to select the link, so that I can re-link images, or embed linked images.
I've gone through the usual Windows troubleshooting: unplugged the mouse and plugged it back in, checked for updated drivers, replaced the mouse, I've tried clearing my cache and deleting temp files from the PC, etc. AFAIK, my mouse is otherwise working; I haven't run across any other issues that I can recall where selected items un-select themselves. I can select artboards, or different tools, without noticing any issues.
I've also noticed that the links panel is taking a while to update; when I relink a file, it take up to about 5 seconds for the panel to change the thumbnail, and duplicating an art board with links has the same kind of delay on displaying the new links. I don't know if that's related or not.
I'm reluctant to update Illustrator et al. at this point, as my Pantone color libraries are still working.
Any ideas?
