Starting from 2018.3.912.1 (was not able to reproduce in 2018.2.821.1 or earlier), loading charts on iOS crashes the device. This happens in the sample project SDKBrowser provided as well, when opening any of the Series charts (specifically the Vertical Bar which is what we have been using).
Stack trace of the crash:
This is happening on iOS Simulator 12.4, and on device on iOS 13.0. The current workaround is to stay on the old version of 2018.2.*, but this is not really a good workaround.