904 shifting weird

Could be something like a broken spring. Cause it seemed to start doing this all of a sudden.
As for the fluid, it looks super clean on the dipstick, and the 1/2 quart that I drained out looks very clean as well. No visible contamination of any kind in the fluid.

If there was any contamination it will be on the bottom of the pan and normally would not come out with draining fluid, from my experience anyway. I have had a fully blown 3rd gear with all the clutches wore down to the steel in both the front and rear drums, bands were the same and when I drained the fluid it looked perfect. When I pulled the pan and took a peak all the material was on the bottom of the pan. I had to use a putty knife to scrape it all out.