NSScrollView behavior changes on Mojave

Anyone having problems with your Custom NSView's inside a NSScrollView? I have a NSScrollView with a custom NSView that uses its draw(rect:) function to do all the work.

Before OSX 10.14, each time scrollview was marked with setNeedsDisplay, the documentView would also refresh. On OSX 10.14 I need to specifically mark the doucmentView to setNeedsDisplay too. Looks like its ignoring the NSScrollView.contentView.copiesOnScroll property.

Does anyone have similar issues or point me to release notes? the NSAppKit release notes don't say anything about NSScrollView.

NSScrollView behavior changes on Mojave
 
 
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