diff --git a/callbacks/preload.go b/callbacks/preload.go
index fd8214bb..a84065ff 100644
--- a/callbacks/preload.go
+++ b/callbacks/preload.go
@@ -103,11 +103,11 @@ func preloadEntryPoint(db *gorm.DB, joins []string, relationships *schema.Relati
 				joined = true
 				continue
 			}
-			joinNames := strings.SplitN(join, ".", 2)
-			if len(joinNames) == 2 {
-				if _, ok := relationships.Relations[joinNames[0]]; ok && name == joinNames[0] {
+			join0, join1, cut := strings.Cut(join, ".")
+			if cut {
+				if _, ok := relationships.Relations[join0]; ok && name == join0 {
 					joined = true
-					nestedJoins = append(nestedJoins, joinNames[1])
+					nestedJoins = append(nestedJoins, join1)
 				}
 			}
 		}
diff --git a/gorm.go b/gorm.go
index f4a18cb4..26908151 100644
--- a/gorm.go
+++ b/gorm.go
@@ -138,12 +138,16 @@ func Open(dialector Dialector, opts ...Option) (db *DB, err error) {
 		return isConfig && !isConfig2
 	})
 
+	var skipAfterInitialize bool
 	for _, opt := range opts {
 		if opt != nil {
 			if applyErr := opt.Apply(config); applyErr != nil {
 				return nil, applyErr
 			}
 			defer func(opt Option) {
+				if skipAfterInitialize {
+					return
+				}
 				if errr := opt.AfterInitialize(db); errr != nil {
 					err = errr
 				}
@@ -195,6 +199,10 @@ func Open(dialector Dialector, opts ...Option) (db *DB, err error) {
 			if db, _ := db.DB(); db != nil {
 				_ = db.Close()
 			}
+
+			// DB is not initialized, so we skip AfterInitialize
+			skipAfterInitialize = true
+			return
 		}
 
 		if config.TranslateError {
diff --git a/schema/index.go b/schema/index.go
index a1cdc639..2690a0cb 100644
--- a/schema/index.go
+++ b/schema/index.go
@@ -105,7 +105,7 @@ func parseFieldIndexes(field *Field) (indexes []Index, err error) {
 				var (
 					name       string
 					tag        = strings.Join(v[1:], ":")
-					idx        = strings.Index(tag, ",")
+					idx        = strings.IndexByte(tag, ',')
 					tagSetting = strings.Join(strings.Split(tag, ",")[1:], ",")
 					settings   = ParseTagSetting(tagSetting, ",")
 					length, _  = strconv.Atoi(settings["LENGTH"])
diff --git a/schema/relationship.go b/schema/relationship.go
index 78eb8d08..c555ca04 100644
--- a/schema/relationship.go
+++ b/schema/relationship.go
@@ -78,7 +78,7 @@ func (schema *Schema) parseRelation(field *Field) *Relationship {
 	cacheStore := schema.cacheStore
 
 	if relation.FieldSchema, err = getOrParse(fieldValue, cacheStore, schema.namer, schema.FieldsCaseInsensitive); err != nil {
-		schema.err = err
+		schema.err = fmt.Errorf("failed to parse field: %s, error: %w", field.Name, err)
 		return nil
 	}
 
@@ -663,6 +663,7 @@ func (rel *Relationship) ParseConstraint() *Constraint {
 					if !(rel.References[idx].PrimaryKey == ref.PrimaryKey && rel.References[idx].ForeignKey == ref.ForeignKey &&
 						rel.References[idx].PrimaryValue == ref.PrimaryValue) {
 						matched = false
+						break
 					}
 				}
 
@@ -675,7 +676,7 @@ func (rel *Relationship) ParseConstraint() *Constraint {
 
 	var (
 		name     string
-		idx      = strings.Index(str, ",")
+		idx      = strings.IndexByte(str, ',')
 		settings = ParseTagSetting(str, ",")
 	)