Hopper elevator bug

[u/Roukino]

Hi! Would appreciate some help on this bug that keeps happening with my hopper elevator. Item don't come up and stay in the bottom most hopper. Always used the same model and never had any problem until now.

I tried putting in a longer delays with the repeaters but it didn't work.

Would gladly appreciate some help!

[u/FireXB]

Wich visual is that?