Mission sort bug for Campaign Ops?

Platform: Windows
Type of Internet Connection: Cable
Internet Connection Speed: 100MBps
Date & Time: January 29th, 2017
Frequency: Unknown

Steps:

After finishing Crimson Domino IV (B) I noticed an issue in the mission list.
For every other mission chain it goes like (example):

Materiel Storm I (X)
Materiel Storm II (X)
Materiel Storm III (X)
Material Storm IV (X)
Search and Seizure I (X)

But for Crimson Domino it went like that:

Crimson Domino I (B)
Crimson Domino II (B)
Crimson Domino III (B)
Bridge Too Far I (B)
Crimson Domino IV (B)

I finished Bridge Too Far before Crimson Domino IV, so my question is whether I screwed up the order myself or if that's intentional.

I don't know if it's a bug or intentional and I would really like to find that out. Thanks.