I'm using rxDB 16.15. A new field was added to the schema of a collection that was migrated with

2: (oldDoc) => oldDoc

After that, my collection can no longer receive changes via the remote's InputStream. I log my document in the modifier before returning it there. Normally, I should see it in the received field afterward, but nothing happens. No errors, no warnings.
My setup is also very minimalistic. I use the following when creating:

db = await createRxDatabase<Database>({
name: dbName,
storage: wrappedValidateAjvStorage({
storage: getRxStorageIndexedDB(),
});,
localDocuments: true,
multiInstance: true,
});

I've tried performing the migration automatically or starting it manually with:

const needed = await col.migrationNeeded();
if (needed) col.startMigration(1);

But it doesn't make any difference.

This only happens when I add a new field to the schema. If I change the type of an existing field and migrate it, everything works fine. The new field I add isn't written to the required field either.