I got this installed and working via a shortcut app and via Automator. The issue I seem to be having is that the id is getting switched.

For example. I left my desk last night and everything was displaying correctly. When I came to my desk this morning. the monitors where switched. So I hit the shortcut. Screens flickered and stayed the same. I then tried the Automator app. Same result.
I opened terminal and ran displayplacer list and got this

id:4927EFE8-6123-BA85-0FAD-1F365C7776E7 res:2560x1440 hz:60 color_depth:8 scaling:off origin:(0,0) degree:0" "id:6D890636-F5C6-E41E-FBC5-7DBE6EB37956 res:2560x1440 hz:60 color_depth:8 scaling:off origin:(-2560,0) degree:0

To fix it I swapped the ids and ran the Automator again within Automator and the displays where corrected. I had to swap the IDs two days ago in the same way. The persistent IDs shouldn't change, right? I have two 27" monitors, each plugged into separate Thunderbolt ports on a 2019 15" MBP