[Fern]

If you increase a Youkai's size via Youkai Regalia then move them around in your Companion menu, they will suddenly start increasing in size. You can repeat this infinitely until it crashes your game.

The bugged size does not appear in battle.

[Snake]

That's a big boy. Although I'll admit, when testing that in the Test Debug Server I didn't quite run into this issue, weird. Might be something for Ascended-only.

[Neus]

How are you moving them around?

[Fern]

Hold click on the Youkai and drag to move them. Do this several times to keep making its size get bigger. Note that you have to increase their size with Youkai Regalia beforehand.

[Neus]

This should be corrected. Size changes won't be reflected in the companions menu.