I was able to address this by simply changing the way the table interact with each other. In the relationships section in Desktop you need to select the relationship and the option on the bottomr right "Cross filter direction" needs to be set to "Both". One more bit of advice...if you want to use Row Level Security you cannot check the box "Apply security filter in both directions". No matter the difference having the Both should address your issue though as long as you do it on the relationship to the table the filter belongs to.
I don’t think this is a bug. The reason you may think this is a bug is because the "Slicer" treats "Blanks" different to other visuals. Try the following to see if you have the same issue as I did and then how you can fix it
[Column 1] [Column 2] [Column 3]
a1 b1 100
a2 b2 200
Fact Table [Column 1] >> Data Table[Column 1]
Bring [Column 1] from Fact Table into slicer
Bring [Column 1] from Fact Table into table
You will see [Blank] in the Slicer although you don't have any blank in this column in the fact table. But, when you bring the same field in the a table visual you don't see the blank. The table visual doesn't show the blank because a table visual (or any other visual) will remove the row if all the values in that row is blank.
The reason for you see Blank in the slicer is because the Data Table has a "blank" value in [Column 1].
If you bring [Column 1] from the Data table in the "Table" visual, you will not see the blank. This is because the "table" will automatically remove the blanks. Bring in another [Column 2] from Data table in the "table" visual and you can now see the blank.
HOW TO FIX THIS
Create a table from the Data table, bring in the column causing you this issue and another column (both from the Data table) without summarizing any of the field (i..e don't add or count any of the field). You will see the row with the blank field.
im new to power BI so please bare with me. im working on a performance report for our company but when i created sumary table with Gauge Chart, it shows a blank in the slicer. i checked all my raw data but i cant see any blank in there. please see below for the samples.
actual table.sample table. just to see if i can see the employee with blank values.