I have been trying to join the realm since yesterday, but I couldn't, when I try joining, the loading screen gets stuck on joining realm building terrain. I tried the solutions provided by Mojang for this issue, which are restarting Minecraft, logging out from my Microsoft account and joining again, leaving the realm and joining again, restarting my router, and restarting my computer but all that was no use. This screen have been showing for no less than 20 minutes.