Error 400: PC (Steam) players cannot join Splitgate challenges

Splitgate
#1

Error 400: PC (Steam) players cannot join Splitgate challenges.

https://tracker.gg/splitgate/challenges

#2

There is not even 1 PC player here

https://tracker.gg/splitgate/challenges/981

#3

I could join somehow a minute ago. But that’s the error I was getting.

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