As a new player, the first run upgrades seem to break on a vanilla story save game which currently have mechs under repair/refit. Most YAML components will not be equipped, and fitting then will lead to staggering bills and wait times.

After making sure to cancel all workorders without the mod; saving; and re-enabling most upgrades work except the SRD-A. This one will miss engine, XL and heatsinks; not even as unequipped in inventory, so unable to restore the mech. They are listed in the pop-up however, just no where to be found.

Don't have any of the DLC's, no other mods.