Issue with rank_features field when updating document

[vinodkotagiri]

i have an index with a field rank_features, and i ingested documents to that index, when i am tring to update any field other than the field with rank_feature, I am getting this error
Error updating documents: ResponseError: document_parsing_exception: [document_parsing_exception] Reason: [1:2658] failed to parse: [rank_features] fields do not support indexing multiple values for the same rank feature [ml_text.tokens.copyright] in the same document
at onBody (/app/node_modules/@elastic/elasticsearch/lib/Transport.js:375:23)
at IncomingMessage.onEnd (/app/node_modules/@elastic/elasticsearch/lib/Transport.js:299:11)
at IncomingMessage.emit (events.js:412:35)
at IncomingMessage.emit (domain.js:475:12)
at endReadableNT (internal/streams/readable.js:1333:12)
at processTicksAndRejections (internal/process/task_queues.js:82:21) {
meta: {
body: { error: [Object], status: 400 },
statusCode: 400,
headers: {
'content-length': '659',
'content-type': 'application/json',
'x-cloud-request-id': 'HLxoyyIoRRiyz2T7eif1Rw',
'x-elastic-product': 'Elasticsearch',
'x-found-handling-cluster': '10d5d33851874436885b4939d3b5212d',
'x-found-handling-instance': 'instance-0000000005',
date: 'Tue, 24 Dec 2024 08:42:01 GMT'
},
meta: {
context: null,
request: [Object],
name: 'elasticsearch-js',
connection: [Object],
attempts: 0,
aborted: false
}
}
}
null

But when i change the rank_features to sparse_vector it is woking fine.

[elasticsearchmachine]

Pinging @elastic/es-search-relevance (Team:Search Relevance)