Elastifile Cloud File system deployment on GCP is using static routes for the load balancing.
This causes a limitation to install 2 Elastifile Cloud File system on the same VPC network.
In the case 2 Elastifile Cloud File system are needed, on the same GCP project, the correct way to do it, is to install them on 2 separated VPC networks.
When launching the second system in Google Marketplace choose the desired 'Network Name' , different then the first deployed system.
For example first system is installed with 'default' 'Network Name',
the second will need a different 'Network Name', 'support vpc' in this case.
You can continue and deploy more systems on the same project, each one on a different VPC.