Digital Light & Color

1. Open Transformation - Test Patterns - Checkerboard
2. Cancel the edit window (with or without changes to the edit)

The checkerboard image stays put in the browser, and cannot be closed (X, or by File - Close all images). Opening any other test pattern, open over top and clears the checkerboard.

If you OK changes in the edit window, the checkerboard image can be closed normally.

I believe this was fixed in the most recent 27.5 April release. Checkerboard is one of the transformations that was setting the current image incorrectly when the transformation dialog box was closed or canceled.

Ooops, my bad. Didn't see the interim update. Just checked with April 28, and all is well.