This problem behaves differently between Local and Remote Render when Game Mode is set in Override.
1. Open attached the project and open Movie Render Queue window
2. Add a "sequencer" asset and set the Override Game mode to "GM".
(GM is setting variables and executes Execute command.)
3. Run Render
The behavior is different between Render (Local) and Render (Remote) and it is incorrect.
Render (Local) has variables set, but Execute Command is not executed.
Render (Remote) has not set variables and Execute Command has not been executed.
The result is as follows when GameMode is executed correctly.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-118584 in the post.