There is a phenomenon which I've seen happen across many circumstances. Generally, it goes something like this:
- The complainant has a recurring observable problem.
- The complainant contacts an expert who may be capable of solving that problem.
- When the complainant attempts to reproduce the problem while the expert is present, the problem is no longer apparent. The expert never witnesses the problem.
- The problem may or may not occur again after the expert goes away.
I'm wondering if there is a term or expression that best describes this phenomenon.
I'm also curious if this is the correct forum for such a question, because the answer I'm looking for doesn't necessarily have to be in English. For example, it could be something like schadenfreude, which may or may not have a simple English counterpart (although in that case, Wikipedia suggests the expression Roman holiday).