So far I am unable to reproduce this issue, and I haven't received any reports similar to this yet. I'm really not sure what the cause here is, you mentioned that you are running Carbon, which I have not tested this plugin with. I would think it should run just fine with Carbon (considering it should be backwards compatible with oxide plugins) though I am not an expert by any stretch in that regard.
From everything you described, it sounds like either something is incompatible or not updated properly. I don't see any plugins from your image that I would think would conflict with Raid Protection, and you also said that you tried it with only the 3 necessary plugins and still had issues, so I think we can rule out plugin conflicts. So that leads me to believe its either a Carbon issue or you have some lingering data/map specific issue.
Feel free to join the discord listed in the plugin description and message me there. If so, we can maybe hop on a screen share to see what's going on.
I'm going to mark this as "Can't Reproduce" for now, I'll open it back up if it seems to be a widespread issue for others. I wish I could help you more, but I can't fix it if I can't reproduce it ðŸ™. If you happen to narrow down a root cause, please definitely let me know!