I check for updates every time I play. I'm running version 1.5
Do me a favor.
I can't see your screen.
Take two screenshots, at 100% research funded. Homeworld on turn 1 with nothing on it, and homeworld on turn 1 with 1 lab rush bought (not on a bonus tile, please).
Racial points (statistics) screen might be helpful as well if you're running any kind of research bonus, but isn't exactly necessary.
Also, for the sake of this exercise, please limit your difficulty to somewhere between Tough and Normal, regardless of what you usually play. Subnormal gives the player hidden economics bonuses, while settings above Tough give a hidden bonus research value when a research bonus is used. The first is irrelevant for our purposes, but the second one could make the numbers difficult to crunch, assuming we don't see the exact same values from one screenshot to the next, which is what your post leads me to believe you're seeing.
This is the problem you're complaining about, yes? When you build a lab, the additional research doesn't show up until the next improvement is built, etc? Actually, rereading the above, it seems your complaint is that it doesn't show up until a new -planet- is taken.
Also-I'm seeing my installed DL version as 1.50.135 in Impulse, as well as in SDC. Does that match your 1.5?
One MORE question...is this phenomenon present in newly created games, or are you reloading a game you started some time ago with an older version? It may be obvious, but most bugfixes don't apply to saves from an older version, only to new games.
For the record: I am not telling you that you are obsessive or stupid. I am attempting to find the solution to your problem, starting with the most basic possibilities. It is certainly possible that only Stardock can help you, but we -are- trying. This is especially confusing to me since, as I have stated, I am running 1.50.135 and I do NOT see this behavior.