Variables in the playanimation directive cannot change the animation after being used multiple times

Hello Mojang Team,

I encountered problems using the variable of the command playanimation in Minecraft Bedrock version 1.21.92 Hotfix
After using this command multiple times, it was found that changing the variable no longer worked on the player character model
You can only recover by re-entering the game

Please fix this phenomenon to make the playanimation command more convenient