Loss of information with Wacom pen in 10.10.4

(writing this post again, since it seems to have disappeared. If this is not the right place to post that, please let me know)


I am writing this to report a bug that we discovered with the latest update of MacOSX Yosemite, 10.10.4. I am not sure if this is a bug on Apple’s side or on Wacom’s (I have notified Wacom of this bug).


After updating to 10.10.4, there is a loss of information when drawing with the stylus, whether on an Intros or a Cintiq (our Wacom drivers are up-to-date)


The issue disappear if we go in Fullscreen mode, however. Here’s a screenshot, which will probably be more explicit.

This bug also appears in Gimp, Krita (it’s even worse in Krita) and a little bit with Artrage. I haven’t been able to reproduce it on Photoshop however.


So, my questions is, did something change in Cocoa's recognition of external peripherals (like Wacom tablets and styluses) in 10.10.4 ?

This is not the first time that this appears (we actually fixed it at least half a dozen times since Mountain Lion...) and it keeps coming back, which is getting really annoying...


Best regards,

Thierry

Loss of information with Wacom pen in 10.10.4
 
 
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