# Number of subsampled metadata and sequences lower than indexed

**URL:** <https://nextstrain.discourse.group/t/number-of-subsampled-metadata-and-sequences-lower-than-indexed/1262>\
**Category:** General\
**Created:** [October 29, 2022, 9:52pm UTC](https://nextstrain.discourse.group/t/number-of-subsampled-metadata-and-sequences-lower-than-indexed/1262 "2022-10-29T21:52:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![koppk](https://yyz1.discourse-cdn.com/flex031/user_avatar/nextstrain.discourse.group/koppk/32/307_2.png) [@koppk](https://nextstrain.discourse.group/u/koppk)\
**Post date:** [October 29, 2022, 9:52pm UTC](https://nextstrain.discourse.group/t/number-of-subsampled-metadata-and-sequences-lower-than-indexed/1262/1 "2022-10-29T21:52:35Z")

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Dear Nextstrain Community,

I cannot replicate some of my builds from several weeks ago. Has something been changed in the subsampling and indexing procedure?

Thanks.  
Katharina

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**Author:** ![victorlin](https://yyz1.discourse-cdn.com/flex031/user_avatar/nextstrain.discourse.group/victorlin/32/306_2.png) [@victorlin](https://nextstrain.discourse.group/u/victorlin)\
**Post date:** [October 31, 2022, 10:10pm UTC](https://nextstrain.discourse.group/t/number-of-subsampled-metadata-and-sequences-lower-than-indexed/1262/2 "2022-10-31T22:10:00Z")

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Hello @koppk,

Sorry to hear you are having trouble with a Nextstrain workflow. Could you clarify what workflow you are using? If it is the ncov (SARS-CoV-2) workflow, then the [change log](https://docs.nextstrain.org/projects/ncov/en/latest/reference/change_log.html) might offer some clues to what has changed since your last usage.

– Victor