Nextcloud notes app "sync failed" error

Here’s the full error, it appears it might still be synchronizing though:

App Version: 34.0.1
App Version Code: 340000190
App Flavor: play

Files App Version Code: 340010190 (PROD)

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OS Version: 6.1.176-android14-11-gcb50d42b5c59(2026090700)
OS API Level: 37
Device: oriole
Manufacturer: Google
Model (and Product): Pixel 6 (oriole)

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java.lang.IllegalStateException: Duplicate key 46597541 (attempted merging values 268 and 269)
	at java.util.stream.Collectors.duplicateKeyException(Collectors.java:135)
	at java.util.stream.Collectors.lambda$uniqKeysMapAccumulator$1(Collectors.java:182)
	at java.util.stream.Collectors$$ExternalSyntheticLambda1.accept(D8$$SyntheticClass:0)
	at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169)
	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1733)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:574)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:564)
	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:267)
	at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:748)
	at it.niedermann.owncloud.notes.persistence.NotesRepository.getIdMap(NotesRepository.java:545)
	at it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.pullRemoteChanges(NotesServerSyncTask.java:213)
	at it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.run(NotesServerSyncTask.java:101)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:520)
	at java.util.concurrent.FutureTask.run(FutureTask.java:328)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1100)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:1572)