客户端无法访问共享SQL Server（内部部署）连接

I have a shared application in Powerapps using 2 different SQL connections hosted by 2 different On-Premise gateways. Multiple users are using the App without issue -- everyone has the same share permissions (shared with app, gateways and connections). For both SQL Server connections, a service account is used to connect.I have a shared application in Powerapps using