Thanks for your reply, I have tried what you said but neither makes any difference. I'm pretty sure it is related, been using CC instead today and noticed the layers panel lags when switching between files. For example I have two files open, I make a selection in one file, copy it and close the file. When the file closes and I am automatcily switches to my only remaining open file/canvas the layers panel still shows the previous files layers and I get a freeze for about 2-3 seconds. This never happened before yesterday. This all happened after I had a windows update (Update for Windows 10 Version 1607 for x64-based Systems (KB3150513)) Also, sorry about the two threads it appeared as tho the 1st never showed but it just had not been approved yet.
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