list external references does... nothing?

Hello all,

Hope you're good. I'm having an issue whereby I'm editing an older part which I have used another part to indent from. After modifying the part to cut with, as a config within it, I can't select it to use in the insert part feature (works fine in assembly mode).

Am I missing a trick? RMB > list external does, well, nothing... it just blinks and continues as though I hadn't pressed it.

Any help would be greatly appreciated as I've somehow managed to save over the part (used to ask to overwrite but that papers to have stopped also) and can't change the part back / select another configuration of said inserted part.

TIA,

Chris

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