[SPSE] new-SPServiceApplicationPool does not create IIS Application Pool

Hello,

I am running SPSE with 24-08 CU on a 2022 Windows server. Different scripted installations of service application fails at New-SPServiceApplicationPool. There is no error but the IIS application pool is not created even after waiting one night. I guess that the iis app pool is created by a timer job as it should be provisionned on all servers in the farm. In this case it is a single server farm.

But when using the central admin to create a new service application with a new application pool, the iis app pool is created but the specified name is replace by a GUID is IIS.

Is there a bug in the NEW-SPServiceApplicationPool commandlet ?

Is there a way to attach an IIS App Pool to a SP Service Pool ? I can't find the GUID of the IIS AppPool

Thanks for any suggestion to create a SP Service Pool with PowerShell

Jean Marie