Royal Crystals being spent randomly?

Hey there, I’m not too sure but when I spent some blue crystals to expand my roster storage. I saw the system logs and it said I spend 7900 royal crystals AND 70 blue crystals to expand the roster storage. I wasn’t aware if it took royal crystals to expand the storage or if this is a bug? Attached is a screenshot.
royal crystal bug

User: Tbhirdk
Server: Una

This is most likely just a display bug unless they’re actually missing from your account.

I know sometimes when I’m looking at stuff in the shop and close it the same message about my royal crystals pops up and then the loot pop-up shows up showing I got the same number as I “spent” back. Not entirely sure what’s triggering it.