For some weird reasons I cannot disconnect from some relays using nostr:npub18m76awca3y37hkvuneavuw6pjj4525fw90necxmadrvjg0sdy6qsngq955

I can only disconnect while using other clients but when I open nostr:npub18m76awca3y37hkvuneavuw6pjj4525fw90necxmadrvjg0sdy6qsngq955 again, it reconnects to them.

Why?