That's more like when they show you it's not working after doing almost everything wrong which can possibly be wrong. Then you just show them the right way and suddenly it's "working" even though the only thing that changed is they just started click "save" instead of "cancel".
What OP is talking about is probably the user forgetting some detail about their actions immediately prior to the problem occurring and thereby being unable to reproduce the behavior, which is something anybody can do regardless of their technical knowledge.
What OP is talking about is probably the user forgetting some detail about their actions immediately prior to the problem occurring and thereby being unable to reproduce the behavior, which is something anybody can do regardless of their technical knowledge.