Maybe the XT's lights were modified? What you're showing in the pics would be normal over here but may be different in your location.
The marker half of top bulb share the tail light circuit (#14 by your left knee) with bottom bulb, and brake half share the brake light circuit (#8) with center brake light. Both should be fine from your photos, it's just the LED you put in isn't designed properly.Thanks @jzmtl, as suggested by @2.5x_sleeper, I will get some new OEM incandescents bulbs and check to see if the fuse is still good. Do you know if the Top-Red share the same fuse (or which fuse # I should check) as the whole tail light?
Yes, I know... *sighThis thread is hilarious for all the wrong reasons.