Sorry, it took a bit longer to check. I redeployed a MP instance and this time bootstrap worked just fine. But i can assure last time i tried, it gt blocked by cloudflare.

Hey @stell

I will do this within this week and keep ypu updated via DM :)

Will this be resolved in any way in the future?

I had the same problem as well and analyzed it. For my case, it seems like cloudflare is blocking IPs from my Hoster (Hetzner) by default so validation always fails at the bootstrap step.