Keeps crashing and not allowing me to save – Tayasui Sketches Review

I used this App like more than a year and love how simple and easy it is. However, lately it’s been crashing. It does not even allow me to automatically save the sketch. After crashed, it did not revive what I have lastly did on my sketch so I have to re-do it again.
Review by magenmeg on Tayasui Sketches.