AGOL Feature Writer - FME2020.2.3 - Feature Service parameter via attribute

Hi

I am setting up a job to update data in AGOL using FME Desktop 2020.2.3

I am aiming to have a single job which I will publish to our FME Server to refresh the data on schedule.

I have multiple Feature Services to update and am hoping to use a single Feature Writer to update them.

In my workspace I generate the Service ID and am passing through to the Feature Writer Feature Service constraint parameter.

This works successfully when the Feature Writer only updates a single Feature Service however when I try multiple it cannot find the Feature Service, it seems to still connect to the first.

The log shows that it maintains a connection to the first Feature Service and does not switch to the second.

Are there any issues with this methodology?

Suggestions for alternatives?

Thanks