Windows TaskScheduler - Run locally an executable from a remote server in a batch file

I have a batch on my C:\TEMP\batch.bat who runs an exe from a remote server (\Remote_host\App_Folder\app.exe)

My .bat content:

start /d "\\Remote_host\App_Folder\" app.exe

On double click, the batch file runs app.exe correctly. So now, I create a task in Windows Task Scheduler which triggers this batch file.

When task is launched, app.exe is not called.

Any suggestions ?