Scatterplot with TimeSeries Data

[MPrex]

I am working with a dataset that has three columns.
The 'Time' column has a data type of Date/Time with a General Date format, while 'T1' and 'T2' have a data type of Decimal Number.

I would like to create a ScatterPlot where:

- 'Time' is shown in X-axis (HH:MM)

- 'T1' is shown in Y-axis

I only get this error: 

I have removed "Date Hierarchy" from Visualizations-Build visual-X axis

'T1' is set as "Don't summarize" from Visualizations-Build visual-Y axis

Where might be the problem?
I know that 'T1' and 'T2' are in the right format since I can plot them against each other

Any suggestion?

Thanks!

[MPrex]

That did the trick! 
Thank you @Greg_Deckler!

[Greg_Deckler · Accepted solution]

@MPrex Change your Y-Axis to a Sum of T1 instead of T1.