when i use 'BlockApi.getBlockByHeight()' to get block 1711952, nothing wrong, but block 1711953, this error happened... , can you help me ???
java.lang.IllegalArgumentException: trying to add a signature with an unexpected debtor
at org.nem.core.model.MultisigTransaction.addSignature(MultisigTransaction.java:82)
at org.nem.core.model.MultisigTransaction.lambda$new$0(MultisigTransaction.java:50)
at java.util.ArrayList.forEach(ArrayList.java:1257)
at org.nem.core.model.MultisigTransaction.<init>(MultisigTransaction.java:50)
at org.nem.core.model.TransactionFactory.deserialize(TransactionFactory.java:72)
at org.nem.core.model.TransactionFactory.lambda$static$0(TransactionFactory.java:17)
at org.nem.core.serialization.JsonDeserializer.deserializeObject(JsonDeserializer.java:147)
at org.nem.core.serialization.JsonDeserializer.readOptionalObjectArray(JsonDeserializer.java:139)
at org.nem.core.serialization.Deserializer.readObjectArray(Deserializer.java:279)
at org.nem.core.model.Block.<init>(Block.java:79)
when i use 'BlockApi.getBlockByHeight()' to get block 1711952, nothing wrong, but block 1711953, this error happened... , can you help me ???