Working with a 3-node HA cluster (v26.5.1)

Trying to delete a vertex in Studio... the vertex exists when I do 'SELECT FROM table'
e.g. DELETE VERTEX FROM #136:4

I'm presented with the error...

Error on transaction commit
Leader returned HTTP 500 for forwarded command: {"error":"Error on transaction commit","detail":"-51","exception":"java.lang.NegativeArraySizeException"}

Now I have records that can't be deleted.