NullPointerException at com.applovin.sdk.AppLovinAdSize.getLabel() from loadNextAdForZoneId

MAX SDK Version

12.0.0

Device/Platform Info

Google Pixel 7, Android 14

Current Behavior

Hello. I can't load the AppLovin Banner Ads with Zone ID:

sdk.adService.loadNextAdForZoneId(zoneId, this)

The AppLovinAdLoadListener is not called, but the error appears in the logs:

[TaskProcessAdResponse] Task failed execution
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.applovin.sdk.AppLovinAdSize.getLabel()' on a null object reference
    at com.applovin.impl.sdk.AppLovinAdServiceImpl$b.failedToReceiveAdV2(SourceFile:27)
    at com.applovin.impl.sdk.e.r.failedToReceiveAdV2(SourceFile:12)
    at com.applovin.impl.sdk.e.r.run(SourceFile:85)
    at com.applovin.impl.sdk.e.q.b(SourceFile:4)
    at com.applovin.impl.sdk.e.k.q(SourceFile:29)
    at com.applovin.impl.sdk.e.k$1.a(SourceFile:4)
    at com.applovin.impl.sdk.e.k$1.d(SourceFile:3)
    at com.applovin.impl.sdk.e.w$1.d(SourceFile:13)
    at com.applovin.impl.sdk.network.b$b.a(SourceFile:246)
    at com.applovin.impl.sdk.network.b$b.accept(SourceFile:3)
    at com.applovin.impl.sdk.network.e$a.a(SourceFile:5)
    at com.applovin.impl.sdk.network.e$a.b(SourceFile:1)
    at com.applovin.impl.sdk.network.j.run(R8$$SyntheticClass:5)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:487)
    at java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:307)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
    at java.lang.Thread.run(Thread.java:1012)

The exception line from the AppLovin SDK decompiled code:

public class AppLovinAdServiceImpl {
...
private class b implements com.applovin.impl.sdk.ad.i {
...
public void failedToReceiveAdV2(AppLovinError var1) {
            Set var2 = Collections.emptySet();
            synchronized(this.azy.azz) {
                if (AppLovinAdServiceImpl.this.sdk.b(com.applovin.impl.sdk.c.b.aKG)
                    .contains(this.azx.getSize().getLabel()) && this.azy.alT < this.alR)
...

Expected Behavior

A call to AppLovinAdLoadListener is expected with a load response.

How to Reproduce

Try loading a few AppLovin ad banners by running the following line of code:

sdk.adService.loadNextAdForZoneId(zoneId, this)

Additional Info

No response

AppLovin / AppLovin-MAX-SDK-Android