App got rejected due to UIWebView cocos creator 2.4.3

I am not able to submit my game , its showing error

    ITMS-90809: Deprecated API Usage - New apps that use UIWebView are no longer accepted.
    Instead, use WKWebView for improved security and reliability. Learn more 

I am using inbuild web view in my game and sdkbox. Everything seems to be updated but still getting this error.

Cocos creator version - 2.4.3
sdkbox version -
facebook -
firebase -
google play services -
onesignal -

As is mentioned above, all libraries are through sdkbox only. Am I missing something here ?

any idea what am i missing ? it has been 3 days and I am not able to submit my game on app store

I’ll ask engineering for thoughts. Does your game use a UIWebView?

We don’t use any UIWebView in Creator. It should be caused by the third-party SDK you uses.

thank you @jare for the confirmation , will try to ask it form sdkbox team (since i am not using anything apart libraries from sdkbox). However is there any way to detect which library is causing it? I tried to search the text in xcode but could not find anything using “UIWebView”.