Protostellar: Cannot create ephemeral or memcached buckets with bucket manager

com.couchbase.client.core.error.InternalServerFailureException: Internal Couchbase Server error {"completed":false,"details":0,"readonly":false,"requestName":"manager_buckets_create_bucket","retried":0,"server":"An unknown error occurred.","timeoutMs":75000,"timings":{"lastDispatchMicros":234067,"totalDispatchMicros":234067}}

{"level":"error","ts":"2023-10-04T13:36:48.517+0100","logger":"gateway.data-impl.errors","caller":"server_v1/errorhandler.go:484","msg":"handling generic error","error":"cannot specify ReplicaIndexDisabled for Ephemeral buckets","stacktrace":"github.com/couchbase/stellar-gateway/gateway/dataimpl/server_v1.ErrorHandler.NewGenericStatus\n\tC:/dev/stellar-nebula/gateway/dataimpl/server_v1/errorhandler.go:484\ngithub.com/couchbase/stellar-gateway/gateway/dataimpl/server_v1.(*BucketAdminServer).CreateBucket\n\tC:/dev/stellar-nebula/gateway/dataimpl/server_v1/bucketadminserver.go:216\ngithub.com/couchbase/goprotostellar/genproto/admin_bucket_v1._BucketAdminService_CreateBucket_Handler.func1\n\tC:/dev/stellar-nebula/contrib/goprotostellar/genproto/admin_bucket_v1/bucket_grpc.pb.go:146\ngithub.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/recovery.UnaryServerInterceptor.func1\n\tC:/Users/Graham Pople/go/pkg/mod/github.com/grpc-ecosystem/go-grpc-middleware/v2@v2.0.0-rc.5/interceptors/recovery/interceptors.go:34\ngoogle.golang.org/grpc.getChainUnaryHandler.func1\n\tC:/Users/Graham Pople/go/pkg/mod/google.golang.org/grpc@v1.55.0/server.go:1156\ngithub.com/couchbase/stellar-gateway/pkg/interceptors.(*MetricsInterceptor).UnaryConnectionCounterInterceptor\n\tC:/dev/stellar-nebula/pkg/interceptors/metrics-interceptors.go:24\ngoogle.golang.org/grpc.getChainUnaryHandler.func1\n\tC:/Users/Graham Pople/go/pkg/mod/google.golang.org/grpc@v1.55.0/server.go:1156\ngithub.com/couchbase/stellar-gateway/gateway/hooks.makeGrpcUnaryInterceptor.func1\n\tC:/dev/stellar-nebula/gateway/hooks/grpcinterceptor.go:22\ngoogle.golang.org/grpc.getChainUnaryHandler.func1\n\tC:/Users/Graham Pople/go/pkg/mod/google.golang.org/grpc@v1.55.0/server.go:1156\ngo.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc.UnaryServerInterceptor.func1\n\tC:/Users/Graham Pople/go/pkg/mod/go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc@v0.42.0/interceptor.go:347\ngoogle.golang.org/grpc.chainUnaryInterceptors.func1\n\tC:/Users/Graham Pople/go/pkg/mod/google.golang.org/grpc@v1.55.0/server.go:1147\ngithub.com/couchbase/goprotostellar/genproto/admin_bucket_v1._BucketAdminService_CreateBucket_Handler\n\tC:/dev/stellar-nebula/contrib/goprotostellar/genproto/admin_bucket_v1/bucket_grpc.pb.go:148\ngoogle.golang.org/grpc.(*Server).processUnaryRPC\n\tC:/Users/Graham Pople/go/pkg/mod/google.golang.org/grpc@v1.55.0/server.go:1337\ngoogle.golang.org/grpc.(*Server).handleStream\n\tC:/Users/Graham Pople/go/pkg/mod/google.golang.org/grpc@v1.55.0/server.go:1714\ngoogle.golang.org/grpc.(*Server).serveStreams.func1.1\n\tC:/Users/Graham Pople/go/pkg/mod/google.golang.org/grpc@v1.55.0/server.go:959"}