Crop tool= Jagged edges

[Damien Symonds]

Just to be safe, can you do this for me?

[Jamey Brown]

Yes, its happens when I do that too. Not as bad but still noticeable to my eye

[Jamey Brown]

I have a PC desktop running Windows 10 and Photoshop CC. It is over 2 years old, and has 8GB of RAM. Its hard drive has 116GB free out of 918GB. The last time I shut down was just before posting this thread. I run a cleanup program about once a week.

[Damien Symonds]

Can you check something for me?  Under Edit>Preferences>General, what is your "Image Interpolation" set to?

[Jamey Brown]

Nearest Neighbor

[Damien Symonds]

Just now, Jamey Brown said:

Its hard drive has 116GB free out of 918GB.

This is well short of the 1/3rd free space that Brian recommends, but it's not dangerously small either, particularly since you restart regularly.  I see no particular problem here.

Just now, Jamey Brown said:

Nearest Neighbor

Bingo!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

It must be on Bicubic (best for smooth gradients).

[Jamey Brown]

Just uploaded the PSD  you sent me back and don't see any of the jaggedness. Looks perfectly smooth.

[Damien Symonds]

Just now, Jamey Brown said:

Just uploaded the PSD  you sent me back and don't see any of the jaggedness. Looks perfectly smooth.

That's right.  Because mine is set to Bicubic.

[Jamey Brown]

I've said it before and I'll say it again, you are a freakin' genius. Changed mine to Bicubic and can rotate images with no problems what-so-ever!!!  Thank you so much for taking so much time to help me figure this out!

[Damien Symonds]

Hooray!

[Damien Symonds]

I wonder why it changed?  That's a funny ol' glitch, all right.