Thank you for taking the time to file this report - the issue is known (Incompatibility of XQuartz with Apple's changed default behavior of Spaces with multi-screen setups) and already tracked in
* Bug #1244397 “XQuartz on OS X 10.9 and later: limited support for multi-monitor setups” https://bugs.launchpad.net/inkscape/+bug/1244397
The recommended workaround by the core XQuartz developer/maintainer is to «Turn off "Displays have separate spaces" in Mission Control if you need to use X11 across multiple displays».
Thank you for taking the time to file this report - the issue is known (Incompatibility of XQuartz with Apple's changed default behavior of Spaces with multi-screen setups) and already tracked in /bugs.launchpad .net/inkscape/ +bug/1244397
* Bug #1244397 “XQuartz on OS X 10.9 and later: limited support for multi-monitor setups”
https:/
The recommended workaround by the core XQuartz developer/ maintainer is to «Turn off "Displays have separate spaces" in Mission Control if you need to use X11 across multiple displays».