diff --git a/app/boot_levels.go b/app/boot_levels.go
index ec7bcf7d1..e6fb30f34 100644
--- a/app/boot_levels.go
+++ b/app/boot_levels.go
@@ -228,11 +228,11 @@ func (app *CortezaApp) Provision(ctx context.Context) (err error) {
 		ctx = auth.SetSuperUserContext(ctx)
 
 		if err = system.Provision(ctx, app.Log, app.Store); err != nil {
-			return fmt.Errorf("could not provision messaging: %w", err)
+			return fmt.Errorf("could not provision system: %w", err)
 		}
 
 		if err = compose.Provision(ctx, app.Log); err != nil {
-			return fmt.Errorf("could not provision messaging: %w", err)
+			return fmt.Errorf("could not provision compose: %w", err)
 		}
 
 		if err = messaging.Provision(ctx, app.Log); err != nil {
diff --git a/compose/importer/importer.go b/compose/importer/importer.go
index 17200d706..29e9ab086 100644
--- a/compose/importer/importer.go
+++ b/compose/importer/importer.go
@@ -3,8 +3,6 @@ package importer
 import (
 	"context"
 	"fmt"
-	"github.com/pkg/errors"
-
 	"github.com/cortezaproject/corteza-server/compose/types"
 	"github.com/cortezaproject/corteza-server/pkg/deinterfacer"
 	"github.com/cortezaproject/corteza-server/pkg/importer"
@@ -87,6 +85,7 @@ func (imp *Importer) Cast(def interface{}) (err error) {
 	var nsHandle string
 	// Solving a special case where namespace is defined as string
 	// and we're treating value as namespace's handle
+	println("provisioning namespaces")
 	deinterfacer.KVsetString(&nsHandle, "namespace", def)
 	if nsHandle != "" {
 		delete(def.(map[interface{}]interface{}), "namespace")
@@ -140,7 +139,7 @@ func (imp *Importer) Store(
 	if imp.namespaces != nil {
 		err = imp.namespaces.Store(ctx, nsStore, mStore, cStore, pStore, rStore)
 		if err != nil {
-			return errors.Wrap(err, "could not import namespaces")
+			return fmt.Errorf("could not import namespaces: %w", err)
 		}
 
 	}
@@ -154,7 +153,7 @@ func (imp *Importer) Store(
 
 		err = imp.permissions.Store(ctx, pk)
 		if err != nil {
-			return errors.Wrap(err, "could not import permissions")
+			return fmt.Errorf("could not import permissions: %w", err)
 		}
 	}
 
diff --git a/messaging/importer/importer.go b/messaging/importer/importer.go
index 3f92f04b8..b9a93a772 100644
--- a/messaging/importer/importer.go
+++ b/messaging/importer/importer.go
@@ -80,14 +80,14 @@ func (imp *Importer) Store(ctx context.Context, rk channelKeeper, pk permissions
 
 		err = imp.permissions.Store(ctx, pk)
 		if err != nil {
-			return
+			return fmt.Errorf("could not provision permissions: %w", err)
 		}
 	}
 
 	if imp.settings != nil {
 		err = imp.settings.Store(ctx, sk)
 		if err != nil {
-			return
+			return fmt.Errorf("could not provision settings: %w", err)
 		}
 	}
 
diff --git a/store/rdbms/messaging_channels.go b/store/rdbms/messaging_channels.go
index 0e020ffc8..475d5586e 100644
--- a/store/rdbms/messaging_channels.go
+++ b/store/rdbms/messaging_channels.go
@@ -38,11 +38,20 @@ func (s Store) convertMessagingChannelFilter(f types.ChannelFilter) (query squir
 
 	if f.CurrentUserID > 0 {
 		qcm := s.SelectBuilder(s.messagingChannelMemberTable("mcm"), "mcm.rel_channel").
-			Where(squirrel.Eq{"cmc.rel_user:": f.CurrentUserID})
+			// minor squirrel quirk: change placeholder format to question
+			// on sub-queries. This will be reset to the right format internally
+			// when merged with main query
+			PlaceholderFormat(squirrel.Question).
+			Where(squirrel.Eq{"mcm.rel_user": f.CurrentUserID})
+
+		qcmSql, qcmArgs, err := qcm.ToSql()
+		if err != nil {
+			return query, err
+		}
 
 		query = query.Where(squirrel.Or{
-			squirrel.Eq{"c.type": types.ChannelTypePublic},
-			squirrel.Eq{"c.id": qcm},
+			squirrel.Eq{"mch.type": types.ChannelTypePublic},
+			squirrel.Expr("mch.id IN ("+qcmSql+")", qcmArgs...),
 		})
 	}
 
diff --git a/system/importer/importer.go b/system/importer/importer.go
index 508d7ec14..8c6f1e8c3 100644
--- a/system/importer/importer.go
+++ b/system/importer/importer.go
@@ -96,7 +96,7 @@ func (imp *Importer) Store(
 		}
 
 		if err != nil {
-			return
+			return fmt.Errorf("could not provision permissions: %w", err)
 		}
 
 	}