Expand table with wrong data

[Supercat]

Hi 

   I have met a strange promble with table expand. Please check the picture following.

   I have filter one row and merge another table. You can see the data of "DocumentTime" and "Valid To".

And then I expand the column of the table I just merge. Then the column "DocumentTime" and "Valid To" shows another information which I have already filtered in another table.

I have tried other tables merge and expand, the same result. How can I fix with this problem?

Thank you all.

[wdx223_Daniel · Accepted solution]

add a new step in your #"Product Master Data"

NewStep=Table.Buffer(YourOriginalLastStepName)

[Supercat]

Thank you.

I have added the Buffer to the source table, and then the result is right. My source tables are not loaded to the model. Can you please explain why this happened without buffer?

[wdx223_Daniel]

Table.Buffer will load the data into the memory and lock it.