Interesting enough another incident happened in Q's Winter Wonderland. My character had 9 data samples in inventory. There were a few players running around using their abilities (healing, cover shields, etc...) A guy approached my character, my character flashed blue and data samples started disappearing, one at a time. The chat log said "you used a data sample" 9 times. The person disappeared and I couldn't locate him. I'm starting to think now that he didn't 'steal' the data samples, but that he triggered the routine that removes them from inventory when the event is finished. The routine obviously has some bugs if it's allowing my characters to keep data samples after the event.
Hold on... are you talking about the particles
, or the data samples
(like those you get from scanning anomalies in normal missions? If it's the latter, they're bonus data samples, you shouldn't be losing them - but the particle fragments will vanish soon after the event.