Hey GMs

yesterday evening short before you reboot at 12pm bought mats at Hib str relic keep, the merchant take the money but did not give me the mats to my invantar, this morning after i logged in there also missing the rest of this mats what i bought 2 min before but the gold is not given back...
was the strong lag delay the issue ( 15-20 sec waiting longer to finish crafts )?

is this issue uniq or did other people had yesterday the same problem ?