I was playing normally until I decided to rename one of the items using an anvil and this weird bug doesn't allow me to rename them, i deleted all mods i have installed and inserted them back one by one until i found which mod was causing the bug and i was unexpected that it was the geckolib but this mod is really important, so i deleted all mods except for geckolib to be sure if one of the mods was causing the issue and no mod that needs geckolib was causing the issue, it was the mod itself

Is this caused by the latest version of forge or the latest version of geckolib? Or will this be patched in the next update? Please let me know.

Here is the video link for the evidence (I can't add the video here for some reason)

Edit: the version of the GeckoLib I was using was 4.7.1 and i didn't know that the mod had an update so i upgraded the mod to 4.7.1.2 and the bug disappeared