Ok, so after some fiddling around with the code I've managed to get Hive (connect) working on Hubitat...
The issue is with the reference to the 'app.namespace' when creating a child device...
if you edit all references to 'app.namespace' and change it to "alyc100" ( I think the first one is on line 1030)
Remove the line: (164 I think)
def tmaApp = findChildAppByName( appName() )
And replace the next line with:
if(childApps) {
that fixes it...
