New
#11
You're 100% correct in saying that I have tried that already. This is what is perplexing me at this point, because I have experienced this before on some other software, and what you've outlined has usually been the fix.
I've even unpinned other software which doesn't have this behaviour and re-pinned them from various locations (mainly the Start Menu and the install locations) and the other software do not create additional pinned icons when they are launched.
It's just Sketchup Pro 2019 that seems to be displaying this behaviour.
I'm short of thinking of doing a complete clean uninstall and reinstall of this one, but the thought of doing all that is a real schlep, given all the extensions I must install.