Description of the issue:

The IE workbench item model seems to have multiple problems with the orientation:

• The left and right hand model don't mirror each other in 1st person
• The left and right hand model don't mirror each other in 3rd person
• The item is at a strange angle in item frames/on the ground

This seems to be the only item model with this behavior, as everything else correctly flips in 1st/3rd person and isn't tilted.

Versions & Modlist

Forge: 32.0.75
IE: 0.16-109

Forge: 35.0.18
IE: 1.16.4-4.1.1-128

I did some more testing, and it seems to include other models as well. Cheating in the blocks for the multiblocks like the crusher and crude blast furnace, they exhibit the same behavior.

you literally had to cheat them in
You're not supposed to have multiblocks in your hand, which is why only their inventory render is adjusted appropriately.