Thank you for the report. Your report has been highlighted, and we are looking into it.
I'm also running into the same issue. I had over 214 stacks and was just down to finishing off Ahsoka. Never got the feat.
Ally code 243-483-992
I ran my 5 Tuskens. Each had over 50 momentum, so more than 250. Won the battle without loosing a Tusken and did not get the reward for completing the feat. It was buckle up 3, and my Tuskens are low purple gear, level 60ish, no zetas.
This should be rewarding the feat too, but it's not.
Please give us the rewards for your bug, which is the 2nd time it's happened.
Lower tiers, still no feat. These rewards shouldn't be ignored because of an obvious glitch.
There's reports of this being an earned vs. an inflicted issue but to test it properly you would need to test it with different tuskens in the squad.
I used 5 tuskens at Tier 5 and got 150 - Feat Reward Obtained.
I also got it using SEE + Tuskens Tier 6
Bit Dynasty suggests 5 Tuskens Tier 9 using Chieftain Leader with his Zeta but the 3 Original are Relic
If this feat only counts the Momentum awarded from an ally attack and not from an enemy infliction then it needs to be corroborated with CG
