I am using IR with Krastorio and found that Production science pack needs vanilla electric furenace (with black icon). I tried to craft them in sandbox using electric furenace from IR iron age (grey icon) - like the most simalar, but it doesn't work. FNEI and helmod shows no existing recipes for vanilla electric furenace. So it looks like there is no way to produce purple science.
Recipe screenshot:

https://photos.app.goo.gl/kwf2q1ujLwhyMsq66)
Test with currenet electric furenace:

(https://photos.app.goo.gl/EQdV28wYhbhCFXoq6)
My mods list (IR and krastorio are only thinks that modify science packs:

(https://photos.app.goo.gl/ya61NLh5c4JKUvVo7)

U have right, I will fix it later

Thank you. I look forward to an update.

richarnd found a workaround in my topic in IR discussion: https://mods.factorio.com/mod/IndustrialRevolution/discussion/5d79f4abae6ef6000df9926a
Changing science recipes to IR in Krastorio start setting works fine (except the think that I need to reconstruct all my science production on base:) ).

Is fixed

Thank you, Linver !