Fine lines and dots disappear. Work loses clarity and printing becomes streaky with weak solids and densities. Images disappear.

Ink tack to high Reduce tack. Talk with your ink manufacturer
Fountain Solution running pH out of acceptable range Check pH and adjust as necessary
Plate packing not correct Repack plates. Use a packing gauge in ensure correct.
Poor roller settings. Set to heavy Adjust roller strip to manufacturers spec
Ink grind is to rough Check ink grind. Talk with your ink manufacturer.
If plate is post baked. Have plate room check there post bake temps and times.