I believe that the community developer who developed HubConnect (@srwhite) has switched to using a different automation platform that is neither Hubitat nor SmartThings, and therefore its development is stopped. @csteele is kind enough to provide help to HubConnect users as and when he can (and this provision is gratis I might add).
The ST IDE is going away, sooner or later; probably sooner than later. And there are other ways to integrate Hubitat and SmartThings using Node-RED. See the linked post by @mavrrick58 on how to do so:
I would suggest using this approach over HubConnect - at least it is supported at the Samsung end.
