A new update has been released to address a few issues with the 1.21.30 release.

Fixes:

• Fixed several crashes that could occur during gameplay
• Fixed a crash that could occur when trading with Villagers using only the second slot (MCPE-186676)
• An issue where some commands did not recognize certain block or item names has been fixed
• Fixed an issue with transparent objects showing incorrect or missing textures on certain devices (MCPE-185038)
• Armor Stands will now stay on the ground and not enter one block lower each dimension change (MCPE-186726)