Shadow hawk:
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Second EDIT: Manually editing the armor type in the mtf to standard (Inner Sphere) allows the file to load properly.
So... bug report: Changing from the Unofficial tech base to the introductory tech base does not properly revert the armor to standard (inner sphere).
Yeah, not sure what the issue is but there is a bug loading armor, I think confusing the armor type and thinking its a clan unit, which can't be a level 1 unit.
The Swordsman loads find for me and I show the 7.5 tons of standard is report the correct amount of armor points.
When you post the bug report, please post it with the logs and you're Shadow Hawk mtf file to the MegaMek tracker. The error is originating in the MegaMek code that loads the unit.