Regex is correct, but doesn't work in REGEX Plugin

Hi Team,

I have used the following REGEX:
([A-Z]{3}[0-9]{4}/[0-9]{2})

If i test it using this Regex Test page: https://regex101.com/,it works.
But when I apply it to the Regex Plugin in Studio it doesn’t identify the pattern required.
kindly help.

Do changes in Regex like below (mention * before and after expression)and check option “create field for capture groups” in REGEX plugin
..([A-Z]{3}[0-9]{4}/[0-9]{2})..