I think after the latest update, catching non-named trophy fish doesn’t work properly anymore. Fish over a certain weight limit should register as a trophy catch, but they don’t seem to anymore. For example small mouths over 5lbs used to be trophy fish, they no longer are. I also caught this massive pike in this picture and it’s not a trophy catch? Seems broken to me.
After do some more investigating, it appears “trophy weight” has to do with the lake you’re fishing on. So it’s probably not a bug. Depends where you’re fishing.