@CGBenner That's an interesting suggestion. Before this problem showed up, I had seen a couple of issues with the ilogic tab too but quite minor really.
In my own particular way, I prefer to have my Model tab on the left and the ilogic tab to the right. At some point with 2023, I noticed that no matter how many times I tried setting it that way round, the iLogic tab always jumped to the left. I just accepted it as a bug and left it that way round. Doesn't stop me getting on.
Also, you'll be able to see from the screencast that there are two identically named folders in the Manually Added section of the iLogic tab. In the top one I have a list of probably 10 rules that I use regularly. It was just this one folder originally, but recently I needed to add a new rule and for some reason when I added it I got a new folder. Again, doesn't stop me getting on with my work, so I just accepted it, but there's clearly something funky going on with my tabs.
Just a point to note. The rules you see are all external. I don't have any rules in the parts or assemblies. I'll try removing the rules and report back later.