Not only Thermopylae but other variants too
Variant error has N-check is different
This forum thread has been identified by cgabot as a discussion topic.
That's a bug, thanks for reporting.
You can use @yehuh123u's solution as a workaround until it is fixed.
i also noticed this bug
sometimes it randomly shows n check symbol instead of updating when i disable n check
exiting edit position fixed i think (im not sure)




then:
Variant error has N-check is different
the game when there is a different number of N-checks when playing a game with people it is fine but when using the Analysis panel it will give an error like this:
for example:
Thermopylae
When entering the analysis table it will look like this