@Flexo55 Good you did find the cause. Please, as a courtesy to other users of this forum, do edit your first post and add to the subject something like [solved].

FWIW it is currently only in the development branch of emulationstation.

Leave Emulationstation.
ssh with account pi to your pie:

sudo su cd Retropie-Setup

Then you will have to do the "three chord":

./retropie_packages.sh emulationstation-dev sources #1 ./retropie_packages.sh emulationstation-dev build #2 ./retropie_packages.sh emulationstation-dev install #3

If you want to adjust the delay do use this line before proceeding to step 2 and 3.

HTH

Backup your data - see Option 2 of how you can backup - and re-install.

Scraped data is kept in one of these places:

the ROMs folder (if you've used an external scraper). the \\retropie\configs\emulationstations\downloaded_images folder, if you've used only the EmulationStation internal scraper(s).

So if you take the advice in the docs and back-up your ROMs and configs folders, you should be able to keep your games and scraped data.

@ClassicGMR Aha. I suppose that happened some time ago, because right now the scraper doesn't work with the new TDGB API/Site. You might want to re-scrape those entries (or the whole list) using another source site (ScreenScraper) or - if you have a recent Emulationstation - scrape them using the internal ES scraper (from either TGDB or Screenscraper).