I'm not sure this is caused by forge, but I am uncertain how to track the issue down. About a week ago I started playing again and updated Forge. All was well. In the past few days since at least 28.0.100 I've noticed the clock is no longer animated in the inventory.
Using Forge - MC 1.14.4
and the latest texture pack CreatorCraft 3D Ultra 1.14-V2.4 I have missing objects that do NOT occur in Vanilla 1.14.4 (or 1.14.3)
This example screenshot is a pink carpet on a fence if that matters.
https://www.curseforge.com/minecraft/texture-packs/d-creatorcraft/files/2748152