Looking at the log above, your app is actually not able to discover the nucleus server URL you’re supplying.
Tick: provider_nucleus: Connection to omniverse://nucleus.talon.und.edu failed: Discovery Failed 2024-05-20 19:20:30 [209,697ms] [Info] [omni.client.plugin] Tick: provider_nucleus: Will attempt to reconnect in 127 milliseconds 2024-05-20 19:20:30 [209,842ms] [Info] [omni.client.plugin] Tick: provider_nucleus: Connection to omniverse://nucleus.talon.und.edu failed: Discovery Failed 2024-05-20 19:20:30 [209,842ms] [Info] [omni.client.plugin] Tick: provider_nucleus: Will attempt to reconnect in 443 milliseconds 2024-05-20 19:20:30 [210,301ms] [Info] [omni.client.plugin] Tick: provider_nucleus: Connection to omniverse://nucleus.talon.und.edu failed: Discovery Failed 2024-05-20 19:20:30 [210,301ms] [Info] [omni.client.plugin] Tick: provider_nucleus: Will attempt to reconnect in 1155 milliseconds 2024-05-20 19:20:31 [211,471ms] [Info] [omni.client.plugin] Tick: provider_nucleus: Connection to omniverse://nucleus.talon.und.edu failed: Discovery Failed 2024-05-20 19:20:31 [211,471ms] [Info] [omni.client.plugin] Tick: provider_nucleus: Will attempt to reconnect in 1982 milliseconds 2024-05-20 19:20:33 [213,469ms] [Info] [omni.client.plugin] Tick: provider_nucleus: Connection to omniverse://nucleus.talon.und.edu failed: Discovery Failed
Please validate this is the proper server path, and you can actually reach that url from your machine.
Also, please talk with your Nucleus admin to validate the discovery service is running.