Spent a while trying to figure out why Origins kept crashing (I have about 70 mods loaded lol). Finally figured out it was caused by the Elytra Physics mod. A minor "issue", but wondering what the reason could be (is it due to just how the Elytran Origin is coded?), and if there would be a possible workaround/fix?

I used to play with Elytra physics. Same issue after they overhauled their mod so its on their end. If you dont play on the more recent versions use any of the 1.x mod files. Those worked for me