Help with regex

Task below is flashing action 3. It should flash that matches regex. What am I doing wrong?

A1: Variable Set [ Name:%word To:WORD Do Maths:Off Append:Off ]
A2: Flash [ Text:WORD Maches Regex Long:Off ] If [ %word ~R [\w][\d]*[A-Z\s]+ ]
A3: Flash [ Text:WORD Doesn't Mach Regex Long:Off ] If [ %word !~R [\w][\d]*[A-Z\s]+ ]

 

OK. I found the error. Regex should be in square brackets. This [[\w][\d]*[A-Z\s]+] is working now.