Stock spin offs

Mt broker reported on my 1099 the spin off of GE VERNOVA LLC.  It was held for less that a month.  Now my 1099-B is reporting these day acquired in 1b as unknown and cost basis as unknown.  Box 5 as noncovered.

Box 5 apparently doesn't exist in TT.  All I get is cash in lieu of and then a sale 2 months later.  How do I handle this for cost basis.  The system doesn't like zero.  Literally 12 shares of this has ground the world to a halt.