Thanks for the reply Stephen, we just redeployed the solution and unfortunately the issue of not being able to upload new app versions is persisting. This leaves us either having to completely redeploy (need to send out new links to all customers and also re-add all logins/users to the dashboard) or remote into the VMs and update the app (not sure if this even works but definitely not an optimal solution either).
Please let me know as soon as you know if you can repro this on your side or not. Would love to know if it is an issue with the template or our enterprise environment.
Thanks again for your time @Stephen.Phillips