Textarea occasionally blank in High Sierra

Has anyone else encountered a problem where a Textarea is loaded with text but displays a blank field? If you enter the area and drag a selection the text is revealed. It will then display properly if you hide and then reactivate the window.

This has been infrequently happening in High Sierra 10.13 beta 6 and 7


The only time I’ve seen this before is when a TextField is set to be rounded, sometimes it doesn’t display.

Sounds to me like YAB in High Sierra, file a feedback report with Xojo and Radar with Apple.