Why Piped doesn't fetch feed correctly?

[FrozenVertx]

Official Instance

• The bug is reproducible on the official hosted instance, or is API-related.

Describe the bug

It doesn't fetch feeds correctly specially latest ones, also some older feeds too. When I goto channels then it fetched correctly but not in feed page. For Example-
Test feed page -

Channel page-

I have almost 80 subscription on Newpipe and it give 16 + video for today feed whereas Piped gives 4 (it includes big channels like mkbhd) with same subscriptions. Problem happens with small channels.
I don't know how to fix it ?

To Reproduce

1. Open Piped URL
2. Goto channel (like John Hammond)
3. Subscribe
4. Go and refresh feed

Expected behavior

It should fetch every video like Newpipe

Logs/Errors

No response

Browser, and OS with Version.

Firefox 129.0.2
LibreTube

Additional context

I tried to change instances but problem still persist.
I used fresh piped page with default settings also not logged in for test example.

[elliotfontaine]

I have the same issue, using the LibreTube app.

[milenakos]

Can confirm on both external frontend (piped.video), instance frontend, and LibreTube app.

[Tamarindo94]

Same here

[PricacyPro0]

same, also on Libretube
on every instance

[ACR-Jeff]

I've noticed the same, It appears to be different for each instance, An Invidious instance issue? I've also noticed none of which show live streams anymore on my end.

[PricacyPro0]

Piped also doesn't show shorts anymore.

[Philippe-Choquette]

Same here. I'm using LibreTube with Kavin's official instances but I confirmed that it's the same on the instance website.

Piped also doesn't show shorts anymore.

It seems to be working only sometimes with Kavin's official instances.

[ACR-Jeff]

Related? iv-org/invidious#4906

[ACR-Jeff]

Invidious has had a pull request for some time now. I am not much of a coder otherwise I would be contributing. Maybe others are willing to help solve this issue. iv-org/invidious#4906 (comment)
iv-org/invidious#2469