I've tried making many worlds, exploring around, spawning dupes everywhere, searching the save files, etc etc. And i do not think the world as of this update to the thermal patch are spawning geysers.
Steps to Reproduce
Making a new world on the current update of the thermal patch.
Status: Known Issue
We are aware of this issue and have it logged internally but either we do not have a fix ready yet or we are not planning on addressing the issue in the immediate future.