[Appearance] Using + on the last hair, causes a crash

[SephArima]

I was trying out hair styles and was just clicking + till I reach the end and when I clicked it again, the game crashed.
I have tried this with F and M miqo'te.
F - after clicking + on the last hair, there were two hairs that just stretches across the screen and crashed on the 2nd one
M - after clicking + on the last hair, it instantly crashes

I have no hair mods.