People often misquote Jack Swigert on the Apollo 13 mission as saying Houston, we have a technical problem.
Until I read that wikipedia entry, I thought the misquote was simply that the word technical was never actually used. In fact Swigert said Houston, we've had a problem, but in the popular mind we might imagine this to mean that problem was already in the past at the time of speaking, so it's remembered as being in the present tense.
Coming to OP's specific issue after that outrageous deviation, I suggest technical hitch. This makes it clear the problem is real (rather than just a minor technicality), and that the 'direct' cause is a failure of the technology involved (rather than incompetence on the part of an operator, say).
OP's proffered technologicality is an easy and obvious neologism that has doubtless been [re-]coined many times over recent decades, but I can't see it gaining traction just because technicality happens to have been co-opted for minor technical detail.
I do note that technologicalization has started to appear more in recent decades. Clearly an Americanism, since the British spelling technologicalisation remains virtually unknown.