Kubeapps hangs after "Upgrade" button for random app is pressed

[ILZ1105]

Describe the bug
When selecting any app to Upgrade (even Kubeapps itself), the screen just hangs on the loading screen. There is no error reported in either the Devtools nor any of the pod/container logs, not even the ingress logs.

This only happens once, when accessing kubeapps for the first time. One tab refresh (F5) and it works fine from there on onwards until you either close the tab or logout and login again.

To Reproduce
Steps to reproduce the behavior:

1. Login to kubeapps
2. Select any app
3. Click on "Upgrade"

Expected behavior
The next screen to select version etc. is shown.

Screenshots
Embedded.

Desktop (please complete the following information):

• Version [2.11.0]
• Kubernetes version [1.26.5]
• Package version [15.3.10]

Additional context
We do have a cluster setup and are using dex-idp for authorization.