Can't crop pic in Photos editor
MacBook Pro, macOS High Sierra (10.13.5)
If it does not even work in a different Photos Library, try the crop tool while working from a different user account, to check if the problem is system wide or isolated to your user account, see: https://support.apple.com/en-us/HT204443
Does this only happen for a few photos or all photos?
And can you crop photos, if you create a new Photos Library and import a few photos for testing?
See: Create additional photo libraries in Photos on Mac - Apple Support
Thanks for responding.
I did test to see if I could crop pics from either my digital SLR or my iphone ---- I could not crop either. I just get a blak screen.
I'll try a different library -- I have 3, I think ... thanks for the suggestion ...
Can't crop pic in Photos editor