The massive smoke effect screwed up one of the sensors on Gringotts as I recall. Remember there was a period where there was not enough smoke to hide the screen? That happened just so they could run it at all. Practical effects is kind of a vague term but yes, there are effects but I never heard of any of them causing RV issues. They also tested a dank smell effect for all of the interior, but it made some of the workers dizzy and sick. Not sure of what happened after that. I haven't heard any of the TMs mention a smell.
Oh, and on Gringotts, it was some of the effects that weren't communicating properly I believe. I thought the second tippy track was one of them.