Weirdly, this is only happening on my laptop, not my desktop. Both are running Windows 10.
Yesterday, I installed a game from Epic, played it for a while, and when I quit, I noticed that Launchbox still showed the "Installed" instead of "Play" button. Figured it just didn't register correctly, changed the launch path to the game directly, and played again later successfully, although it still said "Installed," but I thought it would fix itself after a reboot.
Today, I went to play that game again, and it still showed "Installed." So I tried uninstalling it, removing it from Launchbox, and reimporting it from Epic. Then I clicked "Install," which took me to the Epic launcher, and installed it from there. It still says "Installed," and now, it won't open the game. When I click on "Install," it just opens the Epic launcher. I checked the other game I currently have installed on this laptop from Epic, and the same thing is happening. It no longer marks the game as installed, only shows the "Install" button, and when I click it, it only brings up the Epic launcher front page, not even the game page.
I am using the workaround of setting the launch path directly to the .exe, but it still refuses to show the game as installed, no matter where that points. I assume it's because the import from Epic is where the bug is. Anybody have any ideas? Thanks!