It happened when my mod have 10 technologies sharing the same trigger condition. The sound effect was _extremely loud_.
Can we tune it down?

I checked the vanilla files again and find that all `emissions_per_minute` are actually under `energy_source`. The BaseEnergySource type does have the correct doc.
So it appears that `emissions_per_second` under EntityPrototype is unused by vanilla...
Just odd that we have both emissions_per_second ...

does not appear to be correct. All vanilla lua files uses `emissions_per_minute`, but the documentation has `emissions_per_second`, not `emissions_per_minute`

Nobody tinkered with research cost? I tended to set it to 4 because I found research in vanilla too fast :lol: ... No reason to really pick research as I could research everything easily.

And lately I am turning biters and pollution off. Walling off one's factory get old fast. No enemy means ...

use the slowest belts, assembly machines, inserters, stone furnaces, wooden chests, wooden power poles everywhere even if better options are available. Unless really needed.
(I do use electric furnaces IMO, jumping straight from stone furnaces, skipping steel.

make a turn on my bus for whatever ...

So I tried myself and it is not happening in vanilla... I didn't expect mods would cause this....

Basically Title sums it all.

What did you do?
Have a Train Window (i.e. clicking on a locomotive) open while researching something. The research has just finished with the top-right Technology box blinking.

What happened?
Train Window closes.

What did you expect to happen instead?
Train ...