2yr old maytag

I am at my wit’s end. It has had the filters cleaned, it is leaving dishes dirty and glasses with gritty stuff on the inside. It is also leaving my glasses with that white film they call etching. I have ran vinegar several times.
Read the comment by desert rat, thank you.

Q:. If Cascade is causing the problem with the sludge build up?
What is the best detergent to use ???..

Is there a dishwasher without these conflicts???
I am almost at the point of making it a boat anchor.