Continious Comparator Update

[PoweredDeveloper]

Expected behavior

Expected to see continiously updating comparator. In Vanilla it works just fine.

Observed/Actual behavior

Comparator do not updating => Quasi Connectivity just loosing it's properties

Steps/models to reproduce

Dropper:

Hopper:

Plugin and Datapack List

No plugins, no datapacks

Paper version

This server is running Paper version git-Paper-496 (MC: 1.20.4) (Implementing API version 1.20.4-R0.1-SNAPSHOT) (Git: 7ac24a1 on ver/1.20.4)
You are running the latest version
Previous version: git-Paper-454 (MC: 1.20.4)

Other

Maybe you can add it as option to config

[Malfrador]

I am not able to get this to work in vanilla singleplayer 1.20.4. I placed the blocks like in your screenshot and filled the hopper and dropper with the same items. However, nothing happens. The comparator just stays powered all the time.

Are there any additional steps required to get this to work? Is there anything else I should look for other than the power of the comparator?

I added a lamp, but it also does not work without it:

[PoweredDeveloper]

Thats's not how it works. It should update comparator constantly. Like, when hopper tries to get item from dropper it updates dropper => comparator updates. The vanilla hopper logic marks the source inventory as changed even if no item is moved out of it. That causes comparator updates constantly. It not visible in game. I'll send a video.

Possible solution:
Add to the hopper pull method

container.setChanged();

[PoweredDeveloper]

I accidentally closed an issue. Sorry