I guess just to confirm my findings before I stop updating this old post. I did what @doublepedaldylan suggested and it almost worked but was not 100% functional on my end. As a last ditch resort I updated my “non-neutral” set up to “neutal” under the config options of my hassio server, and the aux switch now works 100% of the time. Why this works, I have no clue, but I’m not questioning it!
My config is as follows:
Dimmer Switch config (done on the switch itself):
AC Power Type Settings > Non-Neutral (config button 12 times, power off button once, save config)
Switch Type Settings > AUX switch (config button 13 times, power up button 2 times, save config)
Server Config:
21: AC Power Type Settings > Neutral setup
22: Switch Type Settings > 3-way momentary
Should anyone else have these problems in the future!