diff --git a/goextVersion.go b/goextVersion.go
index 877bc86..f64c7a9 100644
--- a/goextVersion.go
+++ b/goextVersion.go
@@ -1,5 +1,5 @@
 package goext
 
-const GoextVersion = "0.0.561"
+const GoextVersion = "0.0.562"
 
-const GoextVersionTimestamp = "2025-01-29T11:02:41+0100"
+const GoextVersionTimestamp = "2025-01-29T11:24:20+0100"
diff --git a/wmo/queryFind.go b/wmo/queryFind.go
index 253699f..16c084d 100644
--- a/wmo/queryFind.go
+++ b/wmo/queryFind.go
@@ -114,7 +114,7 @@ func (c *Coll[TData]) FindIterateFunc(ctx context.Context, filter bson.M, fn fun
 func (c *Coll[TData]) FindIterate(ctx context.Context, filter bson.M, opts ...*options.FindOptions) iter.Seq2[TData, error] {
 	cursor, err := c.createFindQuery(ctx, filter, opts...)
 	if err != nil {
-		return langext.IterSingleValueSeq2[TData, error](nil, exerr.Wrap(err, "").Build())
+		return langext.IterSingleValueSeq2[TData, error](*new(TData), exerr.Wrap(err, "").Build())
 	}
 
 	return func(yield func(TData, error) bool) {
@@ -123,7 +123,7 @@ func (c *Coll[TData]) FindIterate(ctx context.Context, filter bson.M, opts ...*o
 		for cursor.Next(ctx) {
 			v, err := c.decodeSingle(ctx, cursor)
 			if err != nil {
-				if !yield(nil, err) {
+				if !yield(*new(TData), err) {
 					return
 				}
 				continue
diff --git a/wmo/queryList.go b/wmo/queryList.go
index 4d17c0c..0b5b338 100644
--- a/wmo/queryList.go
+++ b/wmo/queryList.go
@@ -76,15 +76,15 @@ func (c *Coll[TData]) ListIterate(ctx context.Context, filter ct.Filter, pageSiz
 	if ctks, ok := inTok.(ct.CTKeySort); ok {
 		_, _, _, _, cursor, err = c.createKSListQuery(ctx, filter, pageSize, ctks)
 		if err != nil {
-			return langext.IterSingleValueSeq2[TData, error](nil, exerr.Wrap(err, "").Build())
+			return langext.IterSingleValueSeq2[TData, error](*new(TData), exerr.Wrap(err, "").Build())
 		}
 	} else if ctpag, ok := inTok.(ct.CTPaginated); ok {
 		_, cursor, err = c.createPaginatedListQuery(ctx, filter, pageSize, ctpag)
 		if err != nil {
-			return langext.IterSingleValueSeq2[TData, error](nil, exerr.Wrap(err, "").Build())
+			return langext.IterSingleValueSeq2[TData, error](*new(TData), exerr.Wrap(err, "").Build())
 		}
 	} else {
-		return langext.IterSingleValueSeq2[TData, error](nil, exerr.New(exerr.TypeCursorTokenDecode, "unknown ct type").Any("token", inTok).Type("tokenType", inTok).Build())
+		return langext.IterSingleValueSeq2[TData, error](*new(TData), exerr.New(exerr.TypeCursorTokenDecode, "unknown ct type").Any("token", inTok).Type("tokenType", inTok).Build())
 	}
 
 	return func(yield func(TData, error) bool) {
@@ -93,7 +93,7 @@ func (c *Coll[TData]) ListIterate(ctx context.Context, filter ct.Filter, pageSiz
 		for cursor.Next(ctx) {
 			v, err := c.decodeSingle(ctx, cursor)
 			if err != nil {
-				if !yield(nil, err) {
+				if !yield(*new(TData), err) {
 					return
 				}
 				continue
diff --git a/wmo/queryPaginate.go b/wmo/queryPaginate.go
index b5b356d..ebad579 100644
--- a/wmo/queryPaginate.go
+++ b/wmo/queryPaginate.go
@@ -87,7 +87,7 @@ func (c *Coll[TData]) PaginateIterateFunc(ctx context.Context, filter pag.MongoF
 func (c *Coll[TData]) PaginateIterate(ctx context.Context, filter pag.MongoFilter, page int, limit *int) iter.Seq2[TData, error] {
 	page, cursor, _, err := c.createPaginatedQuery(ctx, filter, page, limit)
 	if err != nil {
-		return langext.IterSingleValueSeq2[TData, error](nil, exerr.Wrap(err, "").Build())
+		return langext.IterSingleValueSeq2[TData, error](*new(TData), exerr.Wrap(err, "").Build())
 	}
 
 	return func(yield func(TData, error) bool) {
@@ -96,7 +96,7 @@ func (c *Coll[TData]) PaginateIterate(ctx context.Context, filter pag.MongoFilte
 		for cursor.Next(ctx) {
 			v, err := c.decodeSingle(ctx, cursor)
 			if err != nil {
-				if !yield(nil, err) {
+				if !yield(*new(TData), err) {
 					return
 				}
 				continue