Receiving errors while an enchanted bow, which was dropped by a skeleton, was in my hotbar.  The Player message was appearing when I selected the bow as current item.  The error about the skeleton was 'Randomly' popping up as I played without it selected, but with the bow in my hotbar still (found out this was just when a skeleton existed).

The world had been closed and reloaded, but still getting these errors.

One of the error messages (other in screenshot):
[Molang][error]-minecreaft:skeleton | Error: unhandled request for unknown variable 'variable.anim_frame'
[Molang][error]-minecreaft:skeleton | MolangScriptArg::get<>() called on incompatible type
[Molang][error]-minecreaft:skeleton | Error processing expression 

[Update] thought I ruled out the texture pack being the issue because I selected to disable the texture pack and the pack was not having issues before I went into the Beta, but turns out it was enabled in another screen, and once I went back to default texture it went away. Must be something new that has to be addressed with the texture pack, sorry/

[Resolved] (Sorry I tried for a bit, but couldn't find out how to delete this)