Marching ants stay on the image

[chrisl1966]

Since updating to 2017 when I make a selection, say to remove a sky, the marching ants remain static as part of the image.  Is this a bug or am I doing something differently??

[Sahil.Chawla]

Hi Chrisl,

Could you please go to Photoshop > Preferences > Performance > Advanced Settings and see if Open GL is checked or not?

Regards,

Sahil

[chrisl1966]

Hi Sahil

Use OpenCL is.

[Sahil.Chawla · Accepted solution]

Please uncheck it and relaunch photoshop then try it out once, and let us know about the outcome.

[chrisl1966]

Thank you Sahil that appears to have been the problem.  It would be useful if you could explain to me what that check box is.

Regards

Chris