Admob 7.3.0 crashes after loading or before watching ads

[henry-dreamo]

[REQUIRED] Step 1: Describe your environment

• Unity version: 2021.3.14f1
• Google Mobile Ads Unity plugin version: 7.3.0
• Platform: Android (iOS, Android, Unity Editor)
• Platform OS version:
• Any specific devices issue occurs on: moto e⁶ plus, Xperia L1
• Mediation ad networks used, and their versions: None

[REQUIRED] Step 2: Describe the problem

Steps to reproduce:

When receiving a callback that an interstitial or reward ad has been loaded, or when attempting an exposure, the following crash message is received.

This problem has been going on for more than 5 months, I would like to know if it is a memory issue, is it related to the garbage collector, or is it due to some other reason?

[NVentimiglia]

Hi @henry-dreamo

Can you provide any more details? Specifically something which tracks back to Admob?

I did a quick audit of our Android code where Dictionary is used. I found a number of places where we create and populate a dictionary, but found no calls to Remove().

[henry-dreamo]

Hi @NVentimiglia

The last log before the crash was related to AdMob. Since I couldn't see the Android native code, I thought Admob was the most likely option. If Admob can't find the corresponding call stack, it's a different issue. I'll close the issue. thank you.