Bug: RoundCorner filter crashing Glyphs on export

Version 2.6.6 (1346), os x 10.10.5

edit: I just upgraded to the above to see if that would fix it.

Which error message do you get?
It should display in Console.app if you put ‘Glyphs’ in the search field. Then export from Glyphs again to trigger the crash.

15/09/20 14:25:07,370 Glyphs[1831]: Unable to simultaneously satisfy constraints:
“<NSLayoutConstraint:0x60000b48da20 V:[NSButton:0x60000034bdc0’Vertical Metrics’]-(0)-| (Names: ‘|’:NSStackViewContainer:0x6000003b3400 )>”,
“<NSAutoresizingMaskLayoutConstraint:0x60000b489a60 h=–& v=–& V:[NSButton:0x60000034bdc0’Vertical Metrics’]-(3)-| (Names: ‘|’:NSStackViewContainer:0x6000003b3400 )>”

Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x60000b48da20 V:[NSButton:0x60000034bdc0’Vertical Metrics’]-(0)-| (Names: ‘|’:NSStackViewContainer:0x6000003b3400 )>

Set the NSUserDefault NSConstraintBasedLayoutVisualizeMutuallyExclusiveConstraints to YES to have -[NSWindow visualizeConstraints:] automatically called when this happens. And/or, break on objc_exception_throw to catch this in the debugger.

Thos errors are not related to the crash. Do you get a crash report when you restart the app? Please always send them.