White screen when showing ads on iOS

Unity Services
1

I get a white screen (no ui - no video) on some reward videos on iOS.
The video starts, but after a few seconds i get the white screen while the audio continues to play. So i guess the video is still playing. There are no buttons, and it never recovers. I don’t think it ever happens on the first video, but it happens on the 2nd or the 3rd.

Data:
iOS: 9.3.5
Device: iPad 3
Unity Ads version: 2.1.1
Location: Copenhagen, Denmark
Example ad: Family Farm

Any ideas?

2

We have the same problem. Happens only on old devices. Have you found the reason?
We use Unity 5.6 with UnityAds 2.1.0

3

Hi @thomas231 - can you post a support ticket at unityads-support@unity3d.com with logs and any possible details (screenshot of the build information screen from Ads, Adb logcat logs, Unity Ads integration method, Charles logs if possible)

4

I’m having this too. It seems related to RAM memory usage in low end devices.

I made a special build with low resolution textures to lower memory usage and the bug never happens. When I go back to my normal build which uses over 700MB of RAM the problem happens all the time.

Same results when testing with devices with more/less RAM.

2018-09-13 18:34:13.944575+1200 xxx[21209:2458222] I/UnityAds: +[UADSApiSdk WebViewExposed_logInfo:callback:] (line:59) :: Requesting ad plan from https://auction.unityads.unity3d.com/v4/games/1713367/requests?advertisingTrackingId=33C013ED-68B5-4F7C-8736-14883871A553&limitAdTracking=false&deviceModel=iPad4%2C4&platform=ios&sdkVersion=2100&stores=apple&osVersion=11.4.1&screenScale=2&test=true&screenWidth=768&screenHeight=1024&connectionType=wifi&networkType=0
2018-09-13 18:34:18.207068+1200 xxx[21209:2458222] I/UnityAds: +[UADSApiSdk WebViewExposed_logInfo:callback:] (line:59) :: AdPlan received with 1 campaigns and refreshDelay 0
2018-09-13 18:34:18.233266+1200 xxx[21209:2458222] I/UnityAds: +[UADSApiSdk WebViewExposed_logInfo:callback:] (line:59) :: Closing Unity Ads ad unit
2018-09-13 18:34:22.571602+1200 xxx[21209:2458222] I/UnityAds: +[UnityAds show:placementId:] (line:116) :: Unity Ads opening new ad unit for placement rewardedVideo
2018-09-13 18:34:23.097249+1200 xxx[21209:2458222] I/UnityAds: +[UADSApiSdk WebViewExposed_logInfo:callback:] (line:59) :: Opening performance ad with orientation PORTRAIT
2018-09-13 18:34:23.856910+1200 xxx[21209:2458222] Could not request view controller: Error Domain=_UIViewServiceInterfaceErrorDomain Code=0 "(null)" UserInfo={OriginalError=Error Domain=FBSOpenApplicationServiceErrorDomain Code=3 "The request to open "com.apple.ios.StoreKitUIService" failed." UserInfo={BSErrorCodeDescription=ProcessExited, NSLocalizedDescription=The request to open "com.apple.ios.StoreKitUIService" failed., NSLocalizedFailureReason=The process did launch, but has since exited or crashed.}}
2018-09-13 18:34:24.263492+1200 xxx[21209:2458222] [Application] -[UIApplication endIgnoringInteractionEvents] called without matching -beginIgnoringInteractionEvents. Ignoring.
2018-09-13 18:34:27.907594+1200 xxx[21209:2463908] [ProcessSuspension]  0x1184b7470 - ProcessAssertion() Unable to acquire assertion for process with PID 21218
2018-09-13 18:34:57.921731+1200 xxx[21209:2458222] Could not signal service com.apple.WebKit.WebContent: 113: Could not find specified service

I’m using Unity 2018.1.7 and iOS devices.

Using Ads 2.0.8, the Package Manager doesn’t show the update button but I see the version in the store is higher, so… …???

5

Hello @roberto_sc . Please, can you fill out a bug report via BugReporter. For me, it sounds like a bug on the Unity Engine side.

6

@DenisasK @roberto_sc
Bug report sent, case number 1084863.

7

@DenisasK I want to add that I’ve updated the plugin from 2.0.8 to 2.3.0 and the problem still happens (it’s the same project that fox sent in the bug, we work together).

I tried to replicate the problem in another project that allocates over 700MB of RAM but the problem doesn’t happen. Nonetheless, I’m absolute sure the problem happens proportionally to the amount of RAM is used, the more we use the more often it happens.

8

By the way, why does the Package Manager provide a much older version of the plugin? (2.0.8 vs 2.3.0)

9

Same problem.
White screen after watching video (AppLovin Max: UnityAds adapter: 3.4.2.1).

  May 28 14:55:57 HC-iPhone-6 xxxx[264] <Warning>: [AppLovin MAX] Invoking event: System.Action`1[System.String]. Param: xxxxxxxxxxxxxxxxx
    MaxSdkCallbacks:InvokeEvent(Action`1, T)
    MaxSdkCallbacks:ForwardEvent(String)
    
    (Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 35)
  May 28 14:55:57 HC-iPhone-6 xxxx[264] <Warning>: I/UnityAds: +[USRVApiSdk WebViewExposed_logInfo:callback:] (line:67) :: Unity Ads event: sending start event to https://publisher-event.unityads.unity3d.com/events/v2/video/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
  May 28 14:56:03 HC-iPhone-6 xxxx[264] <Warning>: I/UnityAds: +[USRVApiSdk WebViewExposed_logInfo:callback:] (line:67) :: Requesting ad plan from https://auction.unityads.unity3d.com/v6/games/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
  May 28 14:56:05 HC-iPhone-6 xxxx[264] <Warning>: I/UnityAds: +[USRVApiSdk WebViewExposed_logInfo:callback:] (line:67) :: Unity Ads event: sending first_quartile event to https://publisher-event.unityads.unity3d.com/events/v2/video/first_quartile/xxxxxxxxxxxxxxxxxxxxxx
  May 28 14:56:07 HC-iPhone-6 com.apple.WebKit.WebContent[277] <Notice>: 1   0x18690e5cc <redacted>
May 28 14:56:07 HC-iPhone-6 com.apple.WebKit.WebContent[277] <Notice>: 2   0x18690e50c <redacted>
  May 28 14:56:07 HC-iPhone-6 com.apple.WebKit.WebContent[277] <Notice>: 3   0x182a59794 <redacted>
May 28 14:56:07 HC-iPhone-6 com.apple.WebKit.WebContent[277] <Notice>: 4   0x182a59438 <redacted>
  May 28 14:56:07 HC-iPhone-6 com.apple.WebKit.WebContent[277] <Notice>: 5   0x182a56b4c <redacted>
  May 28 14:56:07 HC-iPhone-6 com.apple.WebKit.WebContent[277] <Notice>: 6   0x182980c50 CFRunLoopRunSpecific
May 28 14:56:07 HC-iPhone-6 com.apple.WebKit.WebContent[277] <Notice>: 7   0x183390cfc <redacted>
  May 28 14:56:07 HC-iPhone-6 com.apple.WebKit.WebContent[277] <Notice>: 8   0x1833e6030 <redacted>
  May 28 14:56:07 HC-iPhone-6 com.apple.WebKit.WebContent[277] <Notice>: 9

More info: White screen after watching video (UnityADS adapter) · Issue #29 · AppLovin/AppLovin-MAX-Unity-Plugin · GitHub

@DenisasK any news?

10

Bug report sent.
Case 1251629 (reference case - 1084863)