We're getting the same issue with the latest release, we're on runtime 2.3.7.476
If it's too much of a hassle to support 2.3.7 in a next release, it'd be great if you could make an older version of gmlive.gml available for download again that supports it? The latest older version anyone on our team has downloaded is GMLiveForGMS2.3+ 1.0.57, which mostly works but seems like it doesn't properly support all 2.3.7 features (unless the issues we're getting are our own fault lol) maybe there's a version from between then and now that'd be a great fit