You already have the "engine"- (that's the creator's program files- not the templates) installed, no reason to reinstall that, or the exe file associated with the youtube channel graphics installer.
You have to install the creator / logo creator engine first. It sets up the document library the it is needed.
NEXT: GO HERE, DOWNLOAD THE FREE TEMPLATE SET IF YOU HAVEN'T: https://www.laughingbirdsoftware.com/download-free-template-set/
Then install the youtube stuff- sticking with using the creator exe file, not the youtube.exe file
Do it in that order , your 20 day problem should go away.
If you are using the youtube exe file/ shortcut I recommend you stop, and stick with using the creator exe file.
The youtube graphics creator installation file creates it's own exe- no reason to use it. All you are doing is installing the templates and elements anyway.
When the youtube product was first released about 4 years ago it included just the youtube templates / elements, it did not contain any logo templates. You even ended up with a separate exe / icon / desktop shortcut file you clicked on to begin with. At that time many users did in fact click on the "youtube graphics creator" icon / exe file to begin, and no one had any issues, but many did. It was determined that use of the Youtube exe file just didn't work for a bunch of folks and it was recommended that users didn't even need to use it- at that time it was recommended they should stick with using the the logo creator.exe file.
Originally the youtube produce was released about NOV 20th, 2014. The was a beta preview released a few days prior to some folks, it got tweaked a bit, and the rtm product was released a few days later.