It's the same for high moisture smear stinkies. Multi-factorial:
- Core cause is too rapid protein breakdown
- If core is fine but outer paste is not, then protein breakdown source is enzymes in geo/candidum/yeast, one or more
solution is decrease ripening temp after even cover. Low and slow. Usually 40-45F is enough. Sometimes, need to go to 38.
other possible causes, but that's most common