I believe this would be an issue on SSRSU's side as my mod does not alter researches in any way (anymore, unless you are running an old Non-Steam version of TA). Please bring it up to the dev of that mod. Sorry!

I found that it not even increases research point but actually triggers this particular research when any other research is done. So, probably, SSRSU problem? I was using steam version.

do you mean that when you finish any research, the repeatable research is finished one more time every time you research something else?

Yes, that is right. Any research you finish also finishes that repeatable research.

Btw, save/load issue is still there. Any save load forces repeatable research to be self researched one more time.

I have tried olf version on github - pre1.0. There are no both of this issues.

the issue also shouldnt be in the latest version since i rolled back some problematic changes

All tests were done on newest Steam version. The issue is in. You may test it yourself. Load:
Core
Tech Advancing
SSRSU
Start a new colony, check how much costs latest repetable (don't confuce with Productibity V, it is not latest) research - it is Productibity (Repeatable). Save it, load it and check one more time. Also you will notice, that more researches you debug insta finish, more it will cost.

Tested it, and i was able to reproduce it. I checked my code and nothing edits any researches, so i believe its an issue with ssrsu. I checked his code and it seems pretty complicated; not sure what the issue is, but you should bring it up to the author of that mod.

SSRSU wasn't updated since 2018. Probably, it is abandoned. Btw, in the comments section also mentioned Rim of Madness mod. I don't play with it so cannot check if it contains repeatable researches. Maybe its code is based on SSRSU.

aloha! theres a new option to cap tech level when only having tribals, but i´d like to request an additional option to actually block researches higher then my techlevel(the combination...). as it is i can research electricity as first thing, even if it takes a while

Tested that before, but blocking researches breaks researchpal and research tree (their fault), so i cant add that, sorry

https://github.com/fluffy-mods/ResearchTree/issues/33
I even opened an issue, but nothing happened since i opened it which was 17 days ago

figured out the issue for the ssrsu problem. gonna push a fix in a bit

...hmm, maybe as a seperate modfile? im not using either of those mods

Thank you for a patch, GHXX. Hope that researchpal and research tree mods will fix their stuff. Since like the last one is by fluffy and he is an active modder. And we will see Tech Advancing full glory. Thank you for your time and hardwork.