When running PyFluent with the GUI and py mode enabled; ie solver = pyfluent.launch_fluent(precision="double", processor_count=6, mode="solver", show_gui=True, py=True), produces an IndexError in the command line when entering commands from quick search.
image

To reproduce:
run pyfluent with GUI and py set to True
load a case
run basic print command from console and note output is printed in both console and command line
search "check" in quick search and run solver.tui.mesh.check
search again and select solver.tui.define.overset_interfaces.check
see index error in command line only
run print command in console and note output only in console

Initially commands entered in to the GUI console are reflected in the command line window. After the error both continue to run but do not seem coupled to each other anymore.

This is reported in Fluent Bug 808758