OK with a custodial LN address it works. It's really a problem with my node and BTCPay Server. I must find another way to do ln address on Umbrel, I never succeed with Lnbits, also I'm not a huge fan of Cloudflare.
Discussion
if you own a domain, you can check https://github.com/believethehype/nostdress for a ln addresse server.
but btcpay server should also work 🤔
prob not relevant. but that's what I was tagged about lol 🤷🏼 makes more sense that it's a comm issue with your server. i've heard stay far away from cloudlfare! have you checked out the nostr:npub1hxfkcs9gvtm49702rmwn2aeuvhkd2w6f0svm4sl84g8glhzx5u9srk5p6t community for more help?
I didn't know, thanks for the link. I will investigate more, they might be helpful. Also I'm thinking about doing a new proper node, without Umbrel.