We have confirmed that the Apple class compliant driver that Sonic Port / Sonic Port VX relies on for audio can be problematic on iOS 13. We have seen this across multiple iPhones. Our QA department has logged a bug with Apple to resolve this, but being that this is Apple’s driver, we have no control over when this will be fixed. We’ll continue to dialogue with Apple regularly and test iOS 13 beta releases as they become available. We will update this article with any relevant information as it comes.
Update 3/26/20: We’ve tested the iOS 13.4 release and the problem with Sonic Port and Sonic Port VX is resolved.
Edited by Line6Tony