[Bug]: Irreparable crash when paying LN invoice to user with app closed

[ovitrif]

Describe the bug

Note: I get the feeling this is android only.

I managed to get the Android app in a state where it became impossible to get access to my wallet/funds, because it would always crash afterwards.

The repro flow involves paying an instant invoice (LN) to a user that doesn't have the app open.

Once a user attemps to make such a payment, their app will keep crashing effectively preventing them to ever open it and access their funds.

There's currently no way to recover from this error for the end user:

• if they clear app cache/data, then attempt to restore their wallet they end up in the same crash cycle
• if they uninstall/reinstall, wallet recovery flow will get them in the same endless crash cycle

Reproduce

You need 2 android devices / simulators for this, we'll name the two: Alice and Bob, which correspond to device 1 and device 2.

1. As Alice, create an instant payment invoice then quickly close the app.
2. As Bob, first make sure you have enough spending balance, then
   • try to pay the invoice
   • 🔴 Your app will crash and never recover.

The issue can be reproduced always with the same flow.

Screenshots / Recording

blockAndroidBug.mp4

Operating system

Android 14 & 13

Bitkit version

v94

Log output

Found this in Flipper logs:

java.lang.ClassCastException: org.ldk.structs.Option_u64Z$None cannot be cast to org.ldk.structs.Option_u64Z$Some
System.err
	at com.reactnativeldk.classes.LdkChannelManagerPersister.handle_event(LdkChannelManagerPersister.kt:88)
2024-01-12T17:22:58.416Z
13017
System.err
	at org.ldk.batteries.ChannelManagerConstructor$$ExternalSyntheticLambda0.handle_event(Unknown Source:2)
System.err
	at org.ldk.structs.EventHandler$1.handle_event(EventHandler.java:58)
..........