Hydraulic manifold - issue (need ekspert)

Hello i have developed my own manifold for this option. But we seams to have some issue with the steering is very sensitive on the Line. It seams to be a periodical issue. Sometimes it runs perfect.

Does any expert know what could be wrong with our manifold. The manifold is used on a MF 7499 with open center load sensing. Load sensing is dynamic.

We use a 3/2 electric valve instead of the pilot steering 3/2 valve. To shift between ls from autosteer or orbitrol.

Is it a hydraulic problem or electrical steering problem ?

Components we are using.