Weapon deteriorate on Weapon wall mount

[girierm]

Hi,

I noticed that weapons on weapon wall mount deteriorate over time. It did so on my mosquitoe rapier, on a crossbow and on a slime lantern.

I didn't use them after putting them on display, yet they went from slightly used (bar near full) to a red durability bar in a few days.

[Hillerious]

Yes. I also reported that bug. 
Same happens with your armor on the armor stands btw   

it already hass been there before and got fixed in 13.1. but it is back now. 
 

As a workaround you should put the armor and weapon in a chest.