I apologize, but I think there was an initial misinterpretation. Upon closer inspection, I believe my base was in overword and not in raid. I believe this because of the following reasons:
1) The location I appeared at after connecting the date 4.5. corresponded to the location where my base was. Only the base was not there and the structures generated from the mod were different.
2) The location I appeared at is freely accessible from /spawn without using teleport between worlds. At the same time, my location remained exactly the same with /claim set up.
3) When I was traversing the outside world of my base (back when it was still there) I would run into other players' bases and claims quite often, and even the structures I encountered were pretty much selected and destroyed.
4) When I teleported from my base to /spawn, the teleport was instantaneous, with no lag or loading. However, when teleporting a player between worlds, the loading has less lag and the loading screen looks different.
For these reasons, I believe my base was in the right place in the overworld. Thus, there was no mistake on my part and the position of the base in the raid.
