While devices as old as the iPhone 5s have been handled quite well by iOS 12, Fortnite can not say that. The smash hit rocketed on the latest iOS betas, with a known crash issue found on the release notes for each beta update. That changes with developer Beta 4, as Apple confirms that Fortnite is fixed.
Apple released iOS 12 developer Beta 4 on Tuesday, July 17. Fortnite may stop unexpectedly in the 3rd Party Apps Release Notes use is listed as a resolved issue that highlights the issues that players have been unable to cope with during the iOS 12 beta phase.
Some players have confirms that Fortnite: Battle Royale is running smoothly on Beta 4. According to MacRumors poster FunkyTang, the game could be played without crash on Beta 4.
Unfortunately, this patch is currently only included in the developer beta still on version 2, which did not fix the Fortnite bug, public beta testers have to wait for the public Beta 3 of iOS 1
If that's the only reason why you did not jump to iOS 12 Beta, you can now (or can ) very soon)
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