Hi, no idea why this is happening, but first i noticed some weird rewards when clicking on the golden thingies in beyond, giving both the free rewards and the ad ones way lower amounts than what It used to.
And now, i left the Game offline for a bit and the image below i think is pretty clear, in 21 offline minutes It gave me the equivalent of 20 or so seconds.
For reference, I just unlocked the pillars of creation, but if i had to assume some reason for It, It would be that the eagle nebula has a 10 minutes timer, which. I Guess messes somehow with the calcs? Even though the online per second calc seems accurate (as per the second image, 720 in about 600 seconds would be about that amount/second).
No idea if this is known/reported, but imo it is definitely a bug