Cuts, not belonging to the "Base Cuts" category, usually have a limited set of parameters. Starting from version 1.2.XX for some of them the Goodwind cut engine is applied which extends the set of parameters - adds slopes. Thus, you can control more parameters for these cuts.
There are some limitations to such cuts:
- Goodwin only accepts when 3 facets with 4+ vertexes converge at one vertex - more than 3 facets of such type are not accepted.
Note Facets with 3 vertexes do not cause limitations. - Facet types should be correct.
How to solve
To solve the 4+ vertexes problem, you can try running Smart Normalize.