At first I increased the "Research Speed bonus" and "Research Productivity bonus" levels to 10, but after not doing research for a while, I found that my original bonus was gone.

Yeah, for some reason the research productivity does not persist over server reboots. I have not found a solution why only that one does that yet. Thank you for the feedback!

Thank you for your replyment.
I just found that all the bonus does not persist for a while, I don't know the reason.

Hiya, same thing is happening to me, all of the bonuses get removed upon reloading the game. I took a look at the code but no dice, can we get an update on this?

I just tried a fix, not sure if it will actually do the job. It's weird, everything saves the same way, except for that specific technology.

Best I can do for now, I do not have much time to work on these mods.

So the server I am running it on has it working ever since the update. I did not lose the bonus yet. Maybe worth a shot trying it out now

inserter-stack-size-bonus has gone in my game too, and mod make the stack-inserter total stack size be 1+2 when reach the tech +7bonus,
may you fix the problem or make a config in the mod settings to enable/disenable the each bonus

It works for me. lol