Hey peeps, I have upgraded to lemmy 0.19.1 which should fix any federations issues and the read-posts bug.
As I said, I have also replaced the abandoned tesseract frontent, with a self-hosted voyager frontend. You can find it at https://v.lemmy.dbzer0.com. This should allow you to keep your credentials extra safe, even when using a mobile device. You can add it as an mobile "app" via your browser.
Unfortunately almost at the same time I started this upgrade, we started experiencing some network issues which I've been troubleshooting for the past few hours and I can't figure out. So at this point I'm thinking this is caused by this ongoing OVH maintenance as my server do not appear under load, and the request timeouts appear random.
I'll keep investigating and let you know if the status changes for the better.
Update: I'm fairly certain the timeouts are due to OVH networking at this point, so I'm doing a workaround. Things should improve within 4 hours.
Update2: Issue should be resolved currently.
So often is maintenance work more necessary than glorious. Thank you for it anyway.