Hello Pat, when product issue CORE-1225 “Static Resources fail to load for Skuid on Salesforce from URLs other than My Domain URL” was recently resolved in Skuid 11.0.5, the icon set load issue was also fixed.
Of course, because Salesforce does not support reverting to old versions of installed packages, Skuid always recommends testing out any new version in a non-mission-critical sandbox to ensure all functionality is intact.
