Hi all, I think I am facing some bug. My main feed is empty whatever I try to filter. If I click on specific feed that I follow, I see the posts there. Please, help! 
EDIT: So it's photon of piefed.social that stopped to work :(
Yes it starts at 1.
I've put in a PR to photon https://github.com/Xyphyn/photon/pull/723 and a temporary hack into PieFed that checks the referrer for 'p.piefed.social' and works around it.