Placed a still object at the center, and after around 5e+147 years, the object disappeared. You cant do nothing beyond this time. Not even placing a object works. Another test puts this limit even earlier, at 2.98e+120 years.
I guess that's a limit in US2, but its absolutely broken here.
Also, for those that doesn't understand scientific notation, 5e+147 years is:
5,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 or 5 octaquadragintillion years.
And 2.98e+120 years is:
2,980,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 or 2 novemtrigintillion, 980 octotrigintillion years.