There is no problem in RoG itself but when playing SW/RoG, the map does not show sinkhole icon (both for caves and ruins).
Steps to Reproduce
Just start new game (RoG compatible with SW), reveal whole map and check if there is any caves entrances.
Just start new game (RoG compatible with SW), reveal whole map and check if there is any caves entrances.
A developer has marked this issue as fixed. This means that the issue has been addressed in the current development build and will likely be in the next update.