On June 21st a support person was helping me on ticket 1540370 regarding a different issue (' Delete in Progress' instead of deleting). They said it was fixed in 1903 but based on issues on the forums with 1903 we are hesitant to install 1903.
Support said: ' At this point, what would be recommended is to upgrade to 1905 as soon as it is available for On-Prem, because this issue comes from a design issue.' Based on that I was encouraged that we may be getting 1905 released for on-premise but that hasn't happened yet, as of July 2nd.