Can confirm this info from Bernd in the bugreport as well. "I found that it only happens for me if I have "Home" selected when starting the search. If I select "All Applications" and then search, it works fine without crashing. Like for Tammes, I only use Discover for Flathub, since my package manager does not support appstream." But at my side openSUSE repos are selected first and flathub as second.