Apple said today that it plans to release an iOS 17 software update that fixes a bug related to the iPhone 15 Pro and iPhone 15 Pro Max overheating issue, and the company has since shared more details about the problem.

More importantly, Apple stated that the problem is not related to the titanium frame. Contrary to a report published this week, Apple said the iPhone 15 Pro’s design does not contribute to overheating. In fact, Apple said that the titanium frame and aluminum infrastructure provide better heat dissipation than previous generation Pro models with stainless steel frames.

Apple said that some third-party apps, including Instagram, Uber and Asphalt 9: Legends, overloaded the A17 Pro’s chip for unknown reasons, and that the company was working with the developers of these apps to fix the problem. Apple said the bug fixes do not throttle the chip’s performance to fix the temperature-related issue and guarantees it won’t impact long-term performance.

To repeat Apple’s statement:

We’ve identified several conditions that could cause your iPhone to heat up more than expected. The device may become warm in the first few days after installation or restoration due to increased background activity. We also discovered a bug in iOS 17 that is affecting some users and will be fixed with a software update. Another problem is related to some new third-party software updates that overload the system. We’re working with these app developers on fixes that are now rolling out.

You can find more details in our initial coverage of Apple’s announcement.