I have been away from the board for quite a while (years actually) so my apologies if this has already been discussed to death at some point (my search attempt did not turn up anything).
In the Geneforge series it "used to be" that a good way to level up was find a spawner and, rather than killing it as soon as possible, sit there and keep killing creations as it makes them.
However in Geneforge 4 I've noticed an odd thing. For a given spawner you can do that for a while, but then suddenly the kills begin yielding no experience points. It doesn't even say "you receive no points" like [to my recollection] it used to do when you were killing things way below your level. It just fails to mention points at all after a kill and, sure enough, your experience point counter does not go up.
Again, this is not about killing things that are too weak for you, as I still get the expected points by killing similar creatures elsewhere. Also, I do not level between the stage where I am still getting points and the stage when I stop getting them (which used to be the point at which your per-kill reward would drop).
Does this ring a bell with anyone, either as a known bug or a deliberate change? BTW, in one case I believe a spawnwer wasn't even involved, but rather a Shaper (Moshe) repeatedly creating the same set of creations. (I have not dealt with him yet so I could be wrong, but in the past Shapers didn't even use spawners -- only rebels).
Any input would be appreciated!
M