Did you try the Adobe Exchange-version?
Or perhaps upgrade to CC2017 or CC2018 to see if that helps? You can have multiple versions of Ps installed at once if you still need CC2015 for some technical reason.
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I will grab a Mac and install CC2015 to test once I find the time.
Or perhaps upgrade to CC2017 or CC2018 to see if that helps? You can have multiple versions of Ps installed at once if you still need CC2015 for some technical reason.

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I will grab a Mac and install CC2015 to test once I find the time.
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