Yes, YOU cant work (your tasks) because of this issue. If your task is to complete a project then you arent helping this project or the people in this priject in any way. If your task is to help anyone who has an issue then it is ofc ok to help them. But then you have no right to complain, because you are just doin your job.

Dont understand me wrong, im not against helping others. But if you are jeopardizing your own work because of their mistakes, then you are doin something wrong. Afterall you commitet to a specific goal which is your responsibility to complete.