Cannot change preset to make device use MIDI Port 2

Hi. I have a Waldorf Microwave 1 connected to MIDI in/out 2 on the E1.
I am using the existing Microwave 1 preset which is by default set to use MIDI port 1 i/o.
I have edited the preset device to use MIDI port 2 and sent what I believe is the newly revised preset to the E1.
The problem is the the MIDI activity indication is still operating on port 1 when i twiddle the controls.
Is this a bug? Or am I doing something wrong?

Can you send me a link to the preset? You do not have to make it public and you can send it as a PM if you wish. It will be easier for me to see what is happening. Thanks!

It is this Microwave preset by Nick McCabe.
https://app.electra.one/preset/tEkX5nvcYn6WFYUZhsAB

All I did was try to change it to use MIDI Port 2, as per the screenshot in the first post.