I've just installed MCUXpresso IDE v11.0.0 [Build 2516] [2019-06-05] onto Win 8.1, loaded all the SDK examples, plugged in a 11u68 Xpresso v2 dev board, built the demos_switch_blinky project, then go to debug the project and the IDE cannot find the debugger probe.
When I first plug the board in it shows as such in the device manager
When I hit the debug button the IDE goes into search mode and indeed seems to find the board because the LED next to the debug chip starts flashing and the device manager changes to this
However after a few seconds I get
"No compatible probes available. They may be disabled, disconnected, not powered, already in use or not compatible with this target."
error in the "Probes discovered" dialogue.
And no amount of cycling the power, rebooting the PC, or restarting the IDE makes any difference.