Hi @keskonfoula 

Thanks for posting about this.  Are you by chance using a Concept2 rower?  We're currently investigating an issue where row activities synced from Concept2 are being categorized as "virtual row" instead of "indoor row" and that could be causing your Concept2 rowing activities not to appear on a rowing Club leaderboard.

I don't have an estimated time of resolution for this, but I will update this thread when I do.