The new 1.3.1 release of ArcGIS Maps for Adobe Creative Cloud is now up on the Adobe Exchange. If you have a previous version of the extension installed, it should automatically update to 1.3.1 the next time you login to any of the Adobe Creative Cloud apps or your account. If you've not installed the extension before, go to the ArcGIS Maps for Adobe Creative Cloud listing, and click the blue "Free" button in the upper right.
A list of the new features can be found in our doc here: What's New—ArcGIS Maps for Adobe Creative Cloud Help
YouTube video demoing some of the new features: What's New in ArcGIS Maps for Adobe Creative Cloud 1.3 - YouTube
Fixes the blank panels issues: Panels blank after upgrade to v1.3.0
Maps for Adobe Team