Having similar issues on switch. Resource packs and add-ons not working properly or not showing as being activated on worlds anymore. Also just bought a one block world and secret base world that we're working right up til the update. Once the update was installed, the one block world loaded with an completely empty world, no blocks and dropped into the void. Secret base world spawns into what looks like a completely normal world. No structures.
Having similar issues on switch. Resource packs and add-ons not working properly or not showing as being activated on worlds anymore. Also just bought a one block world and secret base world that we're working right up til the update. Once the update was installed, the one block world loaded with an completely empty world, no blocks and dropped into the void. Secret base world spawns into what looks like a completely normal world. No structures.