Abnormal animation of sprite

I’m facing a very rare and strange issue.
My game scene is made up of vehicles (Sprites) traveling on a predefined route; however, sometimes the pointer to the sprite of one of those vehicles starts pointing to Node type instead. Visually I can see a vehicle moving randomly across the game scene and eventually game crashes.

I’m confused as to what might have lead to such issues.

I think the error in your code.
Check your code, add logs.

Can you post some code? Are you doing a cast of any sort?