Cannot access property field and cannot provide user keyboard input in jetbot while using VNC in ISAAC Sim 2021.2.1

While using Isaac sim through VNC, I am not able to access the property tab or any other tab for that matter which requires manual selection and then requires keyboard input. Keyboard input for JETBOT is also not registering.

I am able to change the attributes of the prims in property tab by clicking and dragging the mouse but it is not letting me select by “double click”.

I am accessing an Ubuntu 20.04 system and keyboard and mouse input works fine everywhere except Isaac sim.

Please help in this issue. Thanks in advance!