swiss tournament unplayable on iPad

I try to take part to a Swiss tournament, but nothing happens when the tournament is supposed to start. The top bar indicate « Swiss tournament begin … » (or something like that) and nothing happens. I’m on IOS 15 on an iPad Air.

Then while being frustrated to not be active in the tournament, I tried to play a standard game, and the systems refuse because I’m involved in a tournament … SO basically, I had to wait +- 30 minutes to be able to play a simple game again.

I tried 2 time in the previous days, and always the same problem. I uninstall the app and reinstall it. Arena tournament works without any issue, the Swiss tournament works fine on Pc with a web browser.

I paid a membership to be able to play in the train on my tablet. Expecting not to have to be at home on my computer to play.

Is it anything I can do to solve this or is it a known bug?

You should report it.   On IOS, there is a report problems link for reporting bugs.  (All it does is send an email along with some details about what version of the app you are using. and what operating system, etc.)