Trouble searching for multiple values using rex

I am having trouble searching mutliple patterns using rex. I have the log files containg the following pattern lines:

• BLAH BLAH BLAH, Processtype : <12345> BLAH BLAH BLAH.

I want to get table report on Processtype and the docCount, which in this example case is 12345.

I can search for PROCESSTYPE

sourcetype="SOMETHING SOMETHING" | rex field=_raw ".*, (?<1ST>[A-Z][a-z]+) :.\*"

I can also search for docCount

sourcetype="SOMETHING SOMETHING" | rex field=_raw ".* \<(?<2ND>[0-9]+)\>"

But when I combine the two together like this, it doesn't return any result

 sourcetype="SOMETHING SOMETHING" | rex field=_raw ".*, (?<1ST>[A-Z][a-z]+) : \<(?<2ND>[0-9]+)\>"

What am I doing wrong?