instability when making alphas

[wallasaurus]

When I am working with a plane, sculpting it, making an alpha, then using the size deformation to flatten in back out, after a couple of iterations of this cycle, Zbrush 4R3 will exit with a file recovery message.

Anyone else having something similar?

[Nick.Lee.Wyatt]

You continue to flatten out details back to a 2d plane you may be overlapping hella polys.
Store a morph target instead or use layers. Or just append a fresh plane.