I aim to create multi boards in the same TMP that is currently we work on. It is a Jira-software project and the category is Data Services. When I choose "Create board" I see the following pop up opens up:

The problem is that in the Projects list that it suggests, I can not find our TMP as you can see in the above screenshot it only suggests certain projects which are not useful for me. My question would be where I have gone wrong or what should I do to be able to create another board within the same project?
Thanks!