F12 (render image) keeps repeating After I press F12, Blender (as expected) renders the current frame. But as soon as it has finished, it discards the product (without any opportunity for me to save it) and starts all over again, and again, and again ...

What's going on?
I inadvertently created 2 view layers. So it was not "again, and again", but only 2 repeats. I have deleted the layers, which solved the problem.