Document table with duplicate records

I have a problem: when importing a document table created on kibana v7.7.1 on a kibana v7.14.1, I have duplicate records that determine me wrong totals on the metrics. Opening the visualization in edit, as if I wanted to modify it, I display correct n records and correct totals. How is it possible? you are aware of possible bugs?
The documen table queries with an index with about 11 thousand records.

I haven't found any related errors in Kibana issues.

If you could create a new bug issue providing as much detail as possible that would help a lot. Please indicate if you are seeing this in Lens or in the aggregation based data table, if you are seeing any errors in the browser console, and so on.