Hi @AR19 ,
How do you set up your flow? Using Flow Template?
Do you want to sync data from your CDS Entity to your SQL Table?
Based on the screenshot that you mentioned, I assume that you set up your flow based on Flow Template, is it true? I could not find any configuration issue with your flow.
I have made a test on my side, and don't have the issue that you mentioned. The flow's configuration as below:

On your side, please consider set up a new flow from scratch, then configure it as above screenshot I provided, then try the flow again, check if the issue is solved.
Also please make sure there are records existed in your CDS Entity (Accounts) already. In addition, you could also consider check the run history of your flow as below:

check if the "Insert row (V2)" action could insert data from your CDS Entity into your SQL Table successfully.
Best regards,