Try a different brand of cleaning solution. My husband quit wearing contacts for years because this used to happen.
He used to use the Bausch and Lomb 3 in 1...then he started having similar problems.
He looked awful for hours on end, with the red eyes, and his eyes looked like there was a thick film of mucus on them.
One day, I couldn't find his 3 in 1 solution and ended up buying separate bottles.
We never looked back.
I was a contact lens wearer for many years, and I've had several episodes of corneal problems which might have been avoided. Based on my experience, when your contacts make your eyes turn red, you should consult the eye care professional who prescribed them. You might do better with a different brand of contacts.
It is most likely protein deposits. Take them out sooner.
Dr. O.