Man, I, just, remembered that I had a case triaged out of Toronto, after things went to Zoom, which wasn't deemed to have been heard in the wrong courthouse until I had a similar case, about two years later. The second case, triaged now by the province, was to go to a different courthouse, but, a month later, another judge stepped in to send it to yet another courthouse. Anyway, no doubt that such things happen, given a quick online search.

Venue refers to the proper location where the case should be heard. When filing in federal court, this means determining the proper federal district court to hear the action. If a defendant believes that the plaintiff selected an improper venue, the defendant can raise the defense of improper venue and ask for dismissal of the case and/or transfer of venue.

https://www.bloomberglaw.com/externa...improper-venue