I was using cura 4.11 without problems for my monoprice mini. Last fall i installed 4.12. It seemed to work fine. Used it over the weekend and it failed to slice properly... The seam was left open... It was a gap in the outer walls. On the printer it was a mess. I installed 4.13.. Same thing. Made adjustments to seam features, and no solution was found. The seam features moved around, but gaps remained. Windows was also updated between 4.12 and 4.13. Uninstalled 4.13 and reinstalled 4.11. Problem continues. Any ideas?