I tried options in that other thread… ITMS-90809: Deprecated API Usage - Apple will stop accepting submissions of apps that use UIWebView page-3
ads work with 2.0.8 on device build.
switching from ads 2.0.8 to 3.4.5 just made the ads not work in builds.
using grep. didn’t find any references to UIWebView in my Xcode project
modifying Xcode file target UnityAdsUnityWrapper.mm disabled the ads from working
so far no success of both a build, and ads still working. in 2019.1.14f1
ads 3.3.1, no ads or errors on device
looks like 2.0.8 is the only “verified” version for 2019.1.14f1 in the package manager 