I have got iOS 11.4 and 12.0 simulators installed, but whenever I try to create a simulator with iOS version 11.4, I dont get the option to do so in the version list. How to fix this?

Given an empty UITextField, if I start hitting space bar continuosly, the cursor resets to the beginning after a while. This happens only when the textfield's font is set to a custom external font. So far, seeing this issue in iOS 12, 13 and 14 This was verified with a simple demo app. Is this a confirmed bug?