Client crashes when trying to play on a realm with deferred rendering packs

So I saw that Minecraft Preview just updated, so I updated it, thrn I saw you can now play on Realms and servers, so i immediately got the Realm set-up, then I added a texturr pack which adds deferred rendering, but then I kept crashing. Then I tried it on Minecraft Beta for my Android 13, but it also crashed, then I suddenly managed to the ui and stuff like the crash, but then when I went into one of my worlds, it all of suddenly crashed without expecting it, I also turned of Creator UI since I thought that might be the reason, but not this time. So could you please fix this mojang..?