Regex extractor bug?

[anshibanov (orange812)]

I have a message
191031 13:33:16.016 4628:SAV> ExecutionReport(8), OrderID(37)=9043682,
ClOrdID(11)=35633985, OrigClOrdID(41)=35633985, ExecID(17)=N/A,
ExecType(150)=ORDERSTATUS(I), OrdStatus(39)=CANCELED(4), Account(1)=1030861426,
Symbol(55)=GB_NTRM_T2, Side(54)=BUY(1), OrderQty(38)=22000, CashOrderQty(152)=2488420,
OrdType(40)=LIMIT(2), Price(44)=113.11, TimeInForce(59)=ATTHECLOSE(7),
OrderRestrictions(529)=???(8), LeavesQty(151)=22000, CumQty(14)=0, AvgPx(6)=0,
TransactTime(60)=2019-10-31T10:31:17, Yield(236)=0, Text(58)=gateway2,
Username(553)=148d06, RemoveTime(5177)=2019-10-31T10:33:15, WhoRemoved(5187)=148d06,
SenderCompID(49)=FIX5-Eq-Prod, TargetCompID(56)=148d06, MsgSeqNum(34)=150332,
SendingTime(52)=2019-10-31T10:33:15

And i create extractor. For example,

ExecType.*

But Graylog tell me: Regular expression does not contain any matcher group to extract.

But it fully correct expression!

What i do wrong?

[Christoph (Christoph Kirchner)]

you have to set an machting group, use ().
(ExecType.*)
https://regexone.com/lesson/capturing_groups