Item in the chest do not descend into the hopper
I have sent reports like this before but it doesn't seem clear enough.
I put the item into the chest underneath the hopper, and it should go down the hopper but this time it didn't
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Oh, wait! I just noticed the dirt block in front of the hopper is being powered by redstone dust. So the dirt block is activating the hopper and keeping it from working. This is working as intended.
In your screenshots you're using a resource pack to alter the appearance of hoppers to show whether they're enabled or disabled. That red mark on the rim of the hopper means that it's disabled, so it doesn't perform its normal functions of sucking and pulling items from above it and pushing them into a container below it.
A hopper becomes disabled when it is activated by a redstone signal. "Activated" could mean that it's being powered by redstone dust pointing into it with a power level greater than 0, or it can be activated by being adjacent to a powered redstone component or a solid block powered by redstone dust pointing into it. (Yes, it's unintuitive I know, but "activated" implies "disabled" for a hopper, not "enabled" like it would imply for most kinds of redstone components.)
I can't see what's powering the hopper in your screenshot, but because you have that texture pack I can tell it's disabled. The chest above it can't be powering it, but the grass block behind it might be, and so might the furnace (or blast furnace? I'm not sure) beneath it.
With this information, can you figure out what's activating the hopper and preventing it from working?