As I have a USAA account also I was surprised to see an entry in my account subtracting the number of shares I hold in ACLH, followed by an entry adding 1/30 of the shares I thought I held. Both these transactions were listed as a reverse split this morning.
After market closing USAA added a "security deposit" of the ACLH shares I had held previously. The next transaction is a "security delivery" of the shares that were credited as post reverse split (the 1/30th amount).
It appears USAA is as of now NOT recognizing a reverse split. They are also accepting trades of ACLH which they weren't this afternoon.