Drum Map Allocation - How to prevent this, or is this a bug?

I always try to do something seemingly innocuous which turns into a mine field that sends me on a 20 minute wild goose chase and reminds me why I never used them. I am curious if there is a preferred method for this, since this one "should never happen" in my opinion.
 
Background - Set up a guide track for a cover, audiosnapped, and prepped for laying down the drum track. As I rarely use AD2, I figured I would give it a go, so inserted a track template, moved all the tracks into a folder and loaded a kit. Next I assigned a drum map for AD2 and no sound. Mind you, these are the ones that came from the blog post. Continued for a bit, and new maps even came up without anything beyond DM3 -, DM4 - (i.e. not "AD2 Standard" at the end).
 
Finally, I open Drum Map Manager, since I have 6 maps now, and find out that the AD2 drum map is assigned to (Dimension Pro). Not only is this track archived, but also hidden, with the synth offline in the synth rack. After deleting the other 5 drum maps, I highlighted all of the entries and took a couple minutes just to figure out how to reassign them "en masse" to AD2 (ctrl-shift before changing the Out Port field after all have been highlighted). I was irate enough at that point that I refused to look it up and tested key combos until I found it.
 
That was 24 hours ago... so I just opened the project again, assigned AD2 to "New Drum Map->AD2 Standard" and opened the Drum Map Manager. Sure enough, it is Out Ported to "1-1-(Dimension Pro1)/1" without even an AD2 listed in the "Ports/Channels" at the bottom (yet can be re-assigned in the settings section).
 
For clarification, this project is simple with the DimPro folder archived/hidden above the guide track with the AD2 folder below it. I am confused as to why assigning a drum map to a synth is outputting to a totally different synth from its original insert, let alone one that isn't even online or viewable.
 
Is there a simpler way to avoid these "seek and destroy" missions?

I was worried this might be the case. I had noticed you posted to Kylotan's thread after I wrote the OP, and it never really occurred to me that they were interlinked. I had glossed over that thread but it didn't register fully as I do not use drum maps that often.