No, I was simply calling pm.load_trace() in its own cell, which, based on your post right now, I immediately inferred was wrong and corrected and put within the model context, where now it successfully works.
However, if I change some of the model settings, like a couple of variables’ sd= values, the trace still gets recovered, and everything seems fine. Would a trace be affected if I change all of a model’s variables to something other than what originally created the trace?