One client on NA73, Spring '19 Patch 18.4, Skuid version 11.1.11., Sites
Developer org on NA46, Spring '19 Patch 18.4, Skuid version 12.0.11, Sites
Note that I also have a client on NA102, Spring '19 Patch 18.4, Skuid version 10.0.10 who is not affected by this issue.