There seems to be a bug with the Defeat Tzenkethi Hard (ground) endeavor. I got this hard endeavor and attempted to reroll.
However, no new endeavor showed up. The button went grey for a few seconds before the colour returned. I did not lose any of my reroll tokens in this attempt.
I tried re-rolling on four separate toons, on both ground and space maps with no success.
Federation Engineer (ESD Space)
Federation Tactical (ESD Ground)
Romulan Tactical - Klink Aligned (Beta Quadrant sector space)
Jem Hadar Tactical - Klink Aligned - Undine Sphere space BZ map.
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