Just saw this go by:
Jul 23 14:45:29 payments1004 orphans: globalcollect_gateway_tr 27059622:8322365987 processResponse Error 21000050 : Blocking validation problems with this payment. Investigation required! {"ffname":null,"country":"JP","currency":null,"payment_method":"cc","payment_submethod":"jcb","recurring":"","gateway":"globalcollect","utm_source":"B1516_0721_jaJP_dsk_p1_lg_dsn_map.no-LP.cc","referrer":"XXX"}09:57 < ejegg> case 21000050 : //REQUEST {0} VALUE {2} OF FIELD {1} IS NOT A NUMBER WITH
MINLENGTH {3}, MAXLENGTH {4} AND PRECISION {5} : More validation pain.