Possible weird bug in the right hand techs involving upgrades

[Elessar2]

Specifically the Automatic Increments section deep in the tech menu.

So this will end up also being a question as to what, exactly, is the scope of the "Apply Data" function as well...

I have been doing a lot of editing of slots 15-19 in my scenario. I had already finished pretty much all my changes for techs 20-27.

15-19 are global changes, the same for every major country. 20-27 for the most part are designed by me to NOT be the same.

I had already idly noted this issue a few months ago, when the numbers for one unit type (Mech Infantry, slot 6) had reverted to the same value for every major, when I had spent a ton of time making the Build Limit increases different.

Having fixed it earlier this month, I put it in the back of my mind as I did the other edits of 15-19. Since these are global, I of course used the Apply Data function, making sure I had chosen the correct tech to have its contents copied over (typically from the 1st slot the UK one).

But, wanting to be sure that this issue hadn't recurred, I just checked slots 20-27...

They have ALL been homogenized, as if I had done Apply Data for those slots like I had for 15-19. Now, I know I am absent-minded (which is what I had originally assumed when I spied the issue earlier this year), but I know I am NOT that absent-minded. So, when I choose say Command & Control, choose Apply Data, then Select All, and click on the unit(s) which I want to have the data copied to, surely the editor engine is NOT going to go down to ALL the other tech slots and homogenize the data in those as well (to all the same value as the original country in question, the UK or whatever)?

Otherwise I am at a total loss as to why this has happened. Of course the bug in question may have another cause. If this is systematic in the editor engine, that ANY data in the right-hand techs which is different from country to country at some point is reverted to all be homogenous, my scenario is dead on arrival because too many other factors would have to also be changed and simplified to work around it.

[El_Condoro]

Apply Data applies the whole unit research data to selected units of selected countries.

So, let's say you have changed values for Command and Control for UK HQs but you also want (only) them to have Industry to give them a HQ Rating bonus of +1 (for whatever reason). If you then use Apply Data, Select All countries, and click on HQ as the unit to affect, all HQs in every country will have BOTH the C&C and Industry bonuses applied.

[Elessar2]

Yeah, I understand all of that.

It just hit again, and this time I KNOW I did not do ANY global copies, all manual. It completely wiped out the UK values for tech slot 16 (Infantry Warfare in vanilla).

[El_Condoro]

That's one for the devs, I guess.

[Hubert Cater]

This could be a bug or perhaps a misunderstanding of Apply Data as it is a bit limited in what it can do in some cases.

So that I have a better possible understanding, could you describe in more detail which stats you amended, for which categories, and unit etc.

And what slots 15-19 might be as well.

The more detailed the better so as I can make sure I've got the correct picture here, thanks!