Problem. Camera changes position after render animation starts


I have a problem.
I want to make test renders for different views overnight. To check camera angles.
(Frame 1 - view 1, Frame 2 - view 2, frame n - view 3) It is not animation but rendering multiple pictures without pressing render button every time.

But when I start animation camera view that is visible on screen changes after render animation starts.
Please take a look at print screens attached (1 - before starting animation, 2 - after)
(Frame 1 - view 1, Frame 2 - view 2, frame n - view 3)

Kind Regards,

Without the models it’s hard to say what’s going on.
Any chance the you could send the model so that we could have a look at what’s going on?

I have tried to setup animation from beginning and It worked.

Strange issue.