Flex print quality in 2.12 vs 2.8.3

We have noticed a very visible quality degradation in Z-Suite 2.12 in comparison to 2.8.3 when printing flexible filaments (with the same settings in both cases). Attaching pictures and zcodes.

obiekt do druku z suite 2.8.3.zcodex (3.0 MB)
obiekt do druku z suite 2.12.zcodex (2.5 MB)
obiekt do druku.stl (620.6 KB)