Is there an object limit?

Hi! I'm very new playing with a HuskyLens and I am making a project based around AprilTags. 

Through testing, I've seen that if I “overload” the camera with more than ~8 objects, Arduino crashes. Although my project will not have this situation happen, I'm wondering just for the sake of knowing if there is a built in limit for how many objects can be detected at once?

Thank you!