With the C/C++ DevTools extension installed with "cpp-devtools.enableCppCodeEditingTools": true, a user-invoked Find All References will get cancelled and give 0 results if Copilot happens to invoke Find All References while the user-invoked operation is in progress.

Similarly, a user-invoked Find All References can confuse Copilot into believing there are 0 references if it is waiting for results from the Find All References tool.

A different invoker of FAR should have their request wait for the 1st requester's resut to finish instead of cancelling the 1st requestor's operation.