Have you contacted Operencia support? It could be the game that's faulty, triggering an engine error.
I'm in favor of EGS:
♣ Steam monopoly is bad for all of us, Epic have the money to compete if they're able—still a LOT of work needed on their store tho;
♦ Epic give pubs/devs a much bigger slice of the sales price pie—88% compared to 70% on Steam and most elsewhere, unless something changed recently;
♥ As a customer, I've got a few great free games there, which is fin by me—I've also bought a few there without spending much;
♠ Their retail practices are standard across industries. Have you noticed how TV shows are exclusive to one channel? Or some clothes to one retail chain? Or games to XBox or PS? Etc.
Selling entertainment is quite difficult, customers seem to think the laws of economics shouldn't apply just because the laws of physics don't apply in some games, stories, shows
So we end up with big Kahunas in many sectors:
Games—Steam
Music—Apple
Books—Amazon
Video—YouTube
If you're not familiar with business, I assure you that monopolies are not good for us, the consumer. A number of competitors is essential for a good marketplace, so 'go Epic' as far as I'm concerned—Microsoft, Sony, Amazon, GOG etc don't seem to be making much inroads on Steam for PC games.