I work in a very collaborative place where the silos between teams almost don't exist. Infact, they are almost so non-existent, that I can just go up and help other teams with tasks if there is a lull in my work. This is happening as of late, and I know it is so since our teams task management system has a lot of done tasks and very little new tasks. Therefore I know it is not due to a lack of me picking up new tasks.
I have been going to other teams lately to pick up a task every now and then. My manager has been fine with it for a couple of weeks. But as of recently, she is very clear on "don't work for x team". I do know that because of the nature of where I work, cash is limited (at least from what I understand) and the time is controlled closely by work stamps.
Should I be worried that my manager is curtailing my work like this?