Mega Mek HQ issue

[Drifter]

OK so I created a custom mek then deleted it and recreated it in mek lab through mek hq.   And it is telling me I cant use the name I want because its already in the database but I cant find it anywhere to load it so I can correct the modification.  So where is the database that holds the name so I can clean it up

[2ndAcr]

 Look in folder..........data........mechfiles......custom. It should be there and you can delete it.

 If you want to find it to buy etc, change your tech settings to unofficial

[Hammer]

Also delete the units.cache file.