Cash shop stuff gone!

I logged on a couple of days after the new patch only to find all the cash shop things in my account inventory had vanished! Does this always happen after a patch? If so, I wish I had found something about it in the shop guide because there were several bronze meso bags. Any ideas on what happened and what I could do about it? Thanks very much!

Uh...how long have you had the nx equipment?

Yeah, it could have just expired normally if you had had it for 9 months.

If it was cs stuff from the cs surprise boxes, they were supposed to expire quickly I think.

My second account has all it's cs surprise items. I checked those and the first one expires in a couple of weeks- it's a dress- everything else expires in January. All the surprise items were bought in the last week of the promotion.

When did you buy the other ones?

All the cs suprise items were bought within the last week of the event.