Andrew, ss I noted before, the one thing that I have not tried is going into the Library/Chaches that you mentioned . You didn't think it would make a difference so I thought I would defer but I can run it down if you were waiting for me to do so.
I also thought I would mention is that I've always ordered the hard drive to install the programs and I have 2020, 2021, 2022 and 2023. The plugin, as far as I can remember worked with the 2022 version that I bought in the spring. I'm wondering if there is a file that was copied on the 2022 and not the 2023 disk drives? I know that the disk drives are mass copied, so maybe something there. I could check for you if you instructed me on what to look for and how to do it.
thanks
bn