I was gone a while and checked in today. Dash showed 48 notifications but I was only allowed to check the 20 most recent. I used to be able to go back farther. I’m sorry if somebody wanted a reply from me on something.

I get that often. Sometimes I'll come back after a day or two away with 60+ notifications. I think it's just a little bug. Don't let it bother you if you can :) However, there is a little blue bar once you click on your notifications that says "More Notifications". If you click that, you can see the rest. Hope it helps.

I used to get that bar. But it only opened up the next ten. Sad. Maybe notifications time out now.

You should be able to hit "older posts" at the bottom of the notifications page.
I still have the buttons and they work fine for me
https://imgur.com/a/t7bBGA9

Sometimes I have 200 notifications and it will only let me see 160

>.>
Uhh

I only get like 3