I remember this happening a few times when Champion mechs arrives for variants I already had. But it cleared up after a few days/week or so.
Correction - Clan mechs with Invasion variants do this. Non-invasion variants do not.
Example:
DIRE WOLF DWF-PRIME(I)
DIRE WOLF DWF-PRIME
DIRE WOLF DWF-B
NOVA NVA-PRIME(I)
NOVA NVA-PRIME
DIRE WOLF DWF-PRIME(G)
NOVA NVA-PRIME(G)
Nova was actually the trial mech.
Edited by Nikolai Lubkiewicz, 07 November 2014 - 02:56 AM.