Found it! ut it only showed up in the Frankfurt stock exchange. And only when I used the search function in the shares section. It didn't show up when I searched in the ETF section.
@monoshals I never search using the etf list, I always use general search because some of them don't show up. Be sure to check other sources outsite the app for the ISIN, and always search with this code. Etf names change from exchange to exchange (at least in Degiro) and so does the ticker.