Something similar occured to me back in September. I can’t join PVP and Build Dimensions for some reason. Once you stand on a platform, it just says that “Shifting to X Dimension”, and if you type in a command to warp to a Dimension it says “You need to wait until you have fully connected to your current Dimension” in green text. I had internet issues that day.
This is the link to the similar thing that happened to me in September 2021. PvP and Build Dimension currently unjoinable
Also Bas, I heard on Discord that you were also the same as me, we both got hit by a Typhoon so I’m assuming that our internet is a little bit wonkier than usual. Your internet might be the issue.
Additionally, if your internet isn’t the issue then you can check on this post instead. Reasons why you can’t access any Dimensions. "Access Denied" aka Unable to access any dimensions
You might be able to access Dimensions by now but if you still aren’t, I hope this helps.