Thank you.
I can't figure out the cause of the problem, and I can't make my Bridge do it.
So you'd better reset Bridge's preferences. http://blogs.adobe.com/jkost/2009/10/resetting_bridges_preferences.html
Unchecked, I'd say. Since the resolution has already been established.
You can't go on living like this, mate. It's time to make your life MUCH easier. https://www.damiensymonds.net/bridge-30-day-challenge
The resolution at which you send the files from Lightroom to PS is irrelevant, don't worry. As long as you're entering the correct size and resolution in PS's crop tool, that's all that matters.