Ok, I manually fixed this by changing the version directly in the extension's manifest in: \Stencyl\stencylworks\engine-extensions\admob\dependencies\myadmob
#if ios if(initializeBanner) { initAdmobBanner(adUnitID, position, smartBanner); initializeBanner = false; }
#if ios if(initializeBanner) { initAdmobBanner(adUnitID, position, smartBanner, deviceID); initializeBanner = false; }