Boolean value in Output hyper file is different from the preview view in Tableau Prep when using data from Tableau Server

Issue

When creating a Boolean Calculation field using the same filed name in Tableau Prep, the results are not correct. the TRUE turned to FALSE.
This issue does not happen to a local file, only for published data.
This issue does not happen to INT or STRING field, only to the Boolean field.

For example, creating a Boolean calculation like the below image. The field name is used in the calculation.
User-added image

The data in the preview view in Tableau Prep looks good:

However, in the hyper file output of running the flow, all the values in the [Replace] field are changed to False.

Environment

Tableau Prep Builder
Tableau Server
Tableau Cloud

Resolution

Please use the below workarounds to avoid this issue.

Option 1
Use INT or STRING field instead of Boolean.

Option 2
Create a new Boolean calculation field (like [Replace 2])in Tableau Prep.
User-added image