Android: crash after pause/resume when at least one background job was running

[CrsiX]

If the game was moved to the background and after some time resumed, it would crash without error screen or anything. The only thing are those logs. Note the line Rejecting re-init on previously-failed class java.lang.Class<com.unciv.utils.concurrency.Dispatcher>: java.lang.ExceptionInInitializerError: (Throwable with no stack trace) below:

[05-19 15:18:18.664 22873:22873 I/Unciv launcher]
onCreate event

[05-19 15:18:18.747 22873:22873 I/Unciv launcher]
onResume event

[05-19 15:18:18.817 22873:22957 D/UncivFiles]
[GLThread 38] Creating UncivFiles, localStoragePath: /data/user/0/com.unciv.app.apiv2/files/, externalStoragePath: /storage/emulated/0/Android/data/com.unciv.app.apiv2/files/

[05-19 15:18:18.869 22873:22957 D/UncivGame]
[GLThread 38] Setting new screen: com.unciv.GameStartScreen@2516286, screenStack: [com.unciv.GameStartScreen@2516286]

[05-19 15:18:18.975 22873:22957 W/unciv.app.apiv2]
Accessing hidden field Ljava/util/Collections$SynchronizedCollection;->mutex:Ljava/lang/Object; (max-target-o, reflection, denied)

[05-19 15:18:18.975 22873:22957 W/unciv.app.apiv2]
Accessing hidden field Ljava/util/Collections$SynchronizedCollection;->c:Ljava/util/Collection; (unsupported, reflection, allowed)

[05-19 15:18:18.976 22873:22957 W/unciv.app.apiv2]
Accessing hidden method Ljava/util/Collections$SynchronizedSet;-><init>(Ljava/util/Set;Ljava/lang/Object;)V (max-target-o, reflection, denied)

[05-19 15:18:18.976 22873:22957 W/unciv.app.apiv2]
Accessing hidden method Ljava/util/Collections$SynchronizedCollection;-><init>(Ljava/util/Collection;Ljava/lang/Object;)V (max-target-o, reflection, denied)

[05-19 15:18:18.976 22873:22957 I/unciv.app.apiv2]
Rejecting re-init on previously-failed class java.lang.Class<com.unciv.utils.concurrency.Dispatcher>: java.lang.ExceptionInInitializerError: 
(Throwable with no stack trace)

[05-19 15:18:18.995 22873:22873 I/Unciv launcher]
onPause event

[05-19 15:18:54.931 22996:22996 I/unciv.app.apiv2]
Late-enabling -Xcheck:jni

[05-19 15:18:55.307 22996:22996 I/Unciv launcher]
onCreate event

[05-19 15:18:55.425 22996:22996 I/Unciv launcher]
onResume event