Game crashes when saving custom tattoo

I tried the new tattoo painting mode yesterday and after spending two hours drawing a beautiful color japanese crane tattoo, I exited the window and tried to click save, and it crashed the game.

I was very frustrated so I started again this morning, tried a save after 3 strokes to see if it was working - and it was, so I painted 30minutes and tried a save in progress, and crashed again. 
At this point, I'm not willing to try a third time 💀