Empty response from Imagen 3 with status 200

[ApsidD]

I am trying to generate image with Imagen 3.
I have tried REST and Python library.
For some reason I get response 200 with no images in it.
My prompt that fails is "President of a country is meeting with president of another country."
While the prompt "President of a country" return image just fine.
I came to a conclusion that the first prompt is somehow breaking rules, but it is confusing as at the same time when I enter the same first prompt on the ImageFX website it generates images just fine.