Control pane to start teleop sometimes didn't appear in view

Describe the bug
A clear and concise description of what the bug is.

The control pane to start teleop sometimes didn't appear in view.

Sometimes a small circle with "Show" tag appeared, but sometime nothing appeared and I would have to remove the headset and then wear again (keep trying)

** 100% Reproduceable on Pico **
Steps to reproduce the behavior in Pico Browser:

1. Open https://nvidia.github.io/IsaacTeleop/client
2. Connect to a CloudXR session for the first time
3. Observed that the "Play" screen pops out -> OK
4. Click "disconnect" to exit from a CloudXR session
5. Connect to a CloudXR session for the 2nd time
6. Observed that the "Play" screen DOES NOT pops out -> BAD!!!
7. Exit VR my building the menu button
8. Refresh the web page
9. Connect to a CloudXR session for the 3rd time
10. Observed that the "Play" screen pops out -> OK

Expected behavior

"Play" screen pops out all the time

Observed behavior

Observed that the "Play" screen DOES NOT pops out after "disconnect"

Screenshots
If applicable, add screenshots to help explain your problem.

Platforms

• Isaac Teleop Version: 1.2.9rc1 / 1.3.55rc1
• OS: Ubuntu X86
• Integrations: [e.g. Isaac Lab, Isaac Sim, ROS2]
• XR Device: Pico 4 Ultra
• Additional Devices [e.g. Manus]

Additional context
Add any other context about the problem here.