Unknown folders in ios 11

[fountaineer]

In the storage section of messages/other I have 270.2mb worth of stuff. When i go inside it's just these folders that i can't open. photos attached below.

Does anyone know what these folders are and whether they are normal or something corrupted?
Anyone else have these and if so any particular size?

I'm on ios 11.3

 

[cynics]

Can you find the conversations on those dates to see what they were? Could it be a random file?

Typically you'll see icons representing various files. The folder may represent something.

 

[fountaineer]

Yeah i went through all of the messages pertaining to any attachments of any kind on the various dates from the folders but didn't see anything.
I wonder what everyone elses folder looks like? If it contains anything like mine.

 

[mattguy10]

Not sure what’s going on there... Mine shows zero for “other”