Hello fr33cadtom, greetings to the community!
You just have to stick the "outerringsketch" sketch to the bottom of the face or move it to "Z" -4, and everything works again.
The reasons are easy to understand (discontinuity of faces even with the attachment of the teeth).
The "Pocket" of the "crosssketch" schetch must also be increased (up to 2 mm) to allow you to create the fillets with the face.
Fillets (all of them) it is better to create them last.
Attached pictures show:
- the flow with the fittings created last;
- the parameters of displacement of "outerringsketch" on the bottom.
Attached is the file without the fittings (the complete one would have been impossible to attach it because over 1 MB).