All of the links or just some? 
Discussion
Hmm. Maybe just some? That one showing a preview for you is blank for me. 
Clear net or behind VPN/Tor?
Clear
Will keep an eye on it. We haven't change the preview code for quite a while. I am not sure why it would be failing now... 🤔
I saw nostr:nprofile1qqsqdzwltpr635ehdzfd52tz947qlhq77x2c7j7yguwep9n258k2nuspz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsz9thwden5te0dehhxarj9ehhsarj9ejx2a30qy88wumn8ghj7mn0wvhxcmmv9u4eqt7a mention this too
Yeah, one is a fluke. Two is more concerning.
Both. 😅
Tor running through a VPN. (I run a VPN 24/7 in my phone and I'm trying out the amber signing, so.. I)
keep an eye to see if it is just youtube or any url.
Yezzir.
Seems to just be YouTube. I get the preview stuff from other sites just fine.
This might be related to the issues I've been having with Newpipe, as I sometimes have to kick my VPN to get a new IP address before YouTube will play, but... That doesn't corelate with the preview issue here in amethyst.