[Help] Mod-Organizer tells me to re-order the install/priority-order of Hearthfires and Dragonborn should I do it? Is this normal?

##Research thus far

I haven't discovered much, not knowing the best search terms. However, I did find a post here that talks about the same issue. However, the post doesn't really address my question and instead talks mostly of the difference between load order and priority order which I understand (at least the basics).

##Problem Descriptoion

I recently installed Mod Organizer and went through the tutorial. On the second run (I uninstalled the mods I installed for the tutorial immediately), I noticed that the warning button was flashing, and upon reading the warning, I discovered that there was a conflict between Hearthfires and Dragonborn. Mod-organizer even offered to fix the problem itself. Is this a normal situation for what is essentially a Vanilla install? Should I re-order the files in the left-pane as MO suggests? Have I forgotten a setting (Archive Invalidation? Back-date BSAs? Stop BSA unpacking?) that's causing this problem?

Thanks for taking the time to read this. :)