Hi v-qiuyu-msft,
I have a really small table (1321 rows) as a result of deduplicating source data in power query. I load it to the table in PowerBI Desktop (October 2019) without any aggregations (Don't summarize on every column selected) and I immediately see that there are few rows missing, why is that? There are no filters applied at any stage.
EDIT: I've found some weird **bleep** that is going on in PowerBI at the Visual level: If you want to have a table without any aggregation (so you want each and every row from your base data to be present in Table visual) and you will pick just several columns of your data to be presented (because you want just those) and it will return rows which look just the same (because they are duplicated or because something that is differentiating those rows is in column which is not taken to the table), even if you explicitly picked "Don't summarize" for each element in table - it will bring those rows which looks the same down to just one row.