I have a dell XPS pc, very fast, bought 6 months ago...I've been operating lightroom on it for about 6 months now with no issues. I have just recently updated from version 5.3 to 5.6 and I'm now having all kinds of issues.
My lightroom is running slow, freezing up, real glitchy. Also when I use my brushes the pegs do not appear so i can not go back to adjust any of them. I have also noticed that all my pictures all of a sudden are having chromatic issues when this was not the case before. my camera gear has not changed in some time.
Exactly what parts of Lightroom a now slow?
What does "having chromatic issues" mean? Can you be more specific? Can you show us a screen capture?