P: Lightroom keeps showing this error when launched

great news
I was able to finally make all them things work for me again.
it only took a windows re-instalation, hours of my time and a lot of frustration.
I would like to thank the adobe team for their support, but it was nonexistent. 

nice condescending tone there, Bob.

let me also try it, since you haven't even bothered too read the posts I've wrote above.

I know perfectly well the differences between the two Lightroom variants.

one is the cloud based one, the one which HAS NEVER WORKED for me in two weeks, since first  purchasing it and installing it, giving me this exact error as in the OP. with the new update, the error message was also updated, that's about it.

the second one, Lightroom classic, is the one I can't use with the newest update, and you could make yourself usefull for once and point me to the thread where people are discussing this issue, so I can complain in vain there also, for another two weeks, before canceling my subscription. 

@numa'poze  While I am glad things are working again for you, this bug thread is for Lightroom Desktop (6.4) not Lightroom Classic (12.4)

I uninstalled lrc 12.4 and reinstalled lrc 12.3, which I can thankfully still use. 
again, great job. 

here's an update after the most recent updates.
what's new? I can't use lightroom classic either now.
this is simply great, guys. I've sent reports after reports with no answer. 

did anyone find a working solution for this or at least an explanation? the adobe support team is utterly useless. 

are you done investigating yet? 

I have this same issue .
https://community.adobe.com/t5/lightroom-ecosystem-cloud-based-discussions/error-initializing-lightroom-win32-api-error-122/m-p/13833715#M79504

Same for me: