UPDATE 20.11.2017 - Unfortunately it appears as though the latest release has not fixed the issue. The game team are continuing to investigate, and we will update this article and let you know as soon as we know more.
The team are currently aware of an issue that affects users that play with gyroscopic (tilt) controls on iOS devices running iOS 11.1.
Apple are currently working on their 11.2 update, and to our knowledge it will fix the gyroscope issues when it launches.
For now, we suggest players use other control schemes such. We understand that this must be frustrating for those of you who use our Tilt controls, and hope to have this sorted as soon as possible.