So, I came to the end of a speedrun playthrough of nearly 70 hours in Honour Mode, and Steam triggered the Crit Hit achievement for Tactician, but not the Foehammer for Honour mode...
Other achieves triggered normally during this run.
I had a past issue on my regular Tav playthrough on normal difficulty - the Leave No One Behind didn't trigger when I finished my initial save, but triggered when I started the same game up from a slightly earlier save...

Has anyone else had this issue, and are there any fixes?
Thanks~