Strange behaviour of TTR, has become unusable. Please help

I am hosting myself. Has worked for years without any issues. I must say I am subscribed to a ton of feeds. I always log in and browse the headlines that get sorted based on publication date and open a few that interest me.

Recently, the whole system seems to have changed. Lets say I am subscribed to blog a to z
Normally it would show me the newest first and it was a great way to stay up to date.

But recently it just sorts everything by the blog
So all the headlines of blog a, which may be hundreds including very old ones.
then blog b
then blog c

I did not change anything for sorting or in the settings. But the system is unusable like this.
Any idea?

disable hotkey grouping (hotkey f g) or in preferences

are you running latest tt-rss code? because what you’re describing is how this used to work years ago. nowadays it groups by week.

I don’t find this option on preferences.

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