Nhat Nguyen

@nik9000 @original-brownbear Thanks for reviewing.

Fixed in #108748

Thanks Martijn!

Thanks Alex!

Thanks Nik!

I've opened #108283

I think the failure with the `locations` index occurred in the mixed cluster QA module: https://github.com/elastic/elasticsearch/blob/ac574acca98d34838cd28ffee547bfdd90e00885/rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/tsdb/130_position_fields.yml#L9 The failure occurred in the rolling upgrade module was `Caused by: org.elasticsearch.index.mapper.DocumentParsingException: [1:62] failed...

> See e.g. latest failure: https://gradle-enterprise.elastic.co/s/wdzyszxt4ckmw This build scan from an unmerged PR (https://github.com/elastic/elasticsearch/pull/105073), where we know it has some issues. I've relabelled this issue.

The issue was initially reported due to failures from an unmerged PR. Therefore, I am closing this issue.

@salvatore-campagna I can look into the BWC tests.