diff --git a/fs/sync/sync_transform_test.go b/fs/sync/sync_transform_test.go
index 0def4d2d7..c316f434e 100644
--- a/fs/sync/sync_transform_test.go
+++ b/fs/sync/sync_transform_test.go
@@ -26,6 +26,15 @@ import (
 
 var debug = ``
 
+// newTransformRun resets the global error stats, which Sync consults
+// before deleting files, so that an error left over from an earlier
+// test in this binary doesn't disable deletions in this one, then
+// creates a new test run.
+func newTransformRun(t *testing.T) *fstest.Run {
+	accounting.GlobalStats().ResetCounters()
+	return fstest.NewRun(t)
+}
+
 func TestTransform(t *testing.T) {
 	type args struct {
 		TransformOpt     []string
@@ -94,7 +103,7 @@ func TestTransform(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			r := fstest.NewRun(t)
+			r := newTransformRun(t)
 			defer r.Finalise()
 
 			ctx := context.Background()
@@ -228,7 +237,7 @@ func detectEncoding(s string) string {
 
 func TestTransformCopy(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 	err := transform.SetOptions(ctx, "all,suffix_keep_extension=_somesuffix")
 	require.NoError(t, err)
 	file1 := r.WriteFile("sub dir/hello world.txt", "hello world", t1)
@@ -245,7 +254,7 @@ func TestTransformCopy(t *testing.T) {
 
 func TestDoubleTransform(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 	err := transform.SetOptions(ctx, "all,prefix=tac", "all,prefix=tic")
 	require.NoError(t, err)
 	file1 := r.WriteFile("toe/toe", "hello world", t1)
@@ -262,7 +271,7 @@ func TestDoubleTransform(t *testing.T) {
 
 func TestFileTag(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 	err := transform.SetOptions(ctx, "file,prefix=tac", "file,prefix=tic")
 	require.NoError(t, err)
 	file1 := r.WriteFile("toe/toe/toe", "hello world", t1)
@@ -279,7 +288,7 @@ func TestFileTag(t *testing.T) {
 
 func TestNoTag(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 	err := transform.SetOptions(ctx, "prefix=tac", "prefix=tic")
 	require.NoError(t, err)
 	file1 := r.WriteFile("toe/toe/toe", "hello world", t1)
@@ -296,7 +305,7 @@ func TestNoTag(t *testing.T) {
 
 func TestDirTag(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 	err := transform.SetOptions(ctx, "dir,prefix=tac", "dir,prefix=tic")
 	require.NoError(t, err)
 	r.WriteFile("toe/toe/toe.txt", "hello world", t1)
@@ -315,7 +324,7 @@ func TestDirTag(t *testing.T) {
 
 func TestAllTag(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 	err := transform.SetOptions(ctx, "all,prefix=tac", "all,prefix=tic")
 	require.NoError(t, err)
 	r.WriteFile("toe/toe/toe.txt", "hello world", t1)
@@ -336,7 +345,7 @@ func TestAllTag(t *testing.T) {
 
 func TestRunTwice(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 	err := transform.SetOptions(ctx, "dir,prefix=tac", "dir,prefix=tic")
 	require.NoError(t, err)
 	file1 := r.WriteFile("toe/toe/toe.txt", "hello world", t1)
@@ -377,7 +386,7 @@ func TestSyntax(t *testing.T) {
 
 func TestConflicting(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 	err := transform.SetOptions(ctx, "prefix=tac", "trimprefix=tac")
 	require.NoError(t, err)
 	file1 := r.WriteFile("toe/toe/toe", "hello world", t1)
@@ -395,7 +404,7 @@ func TestConflicting(t *testing.T) {
 
 func TestMove(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 	err := transform.SetOptions(ctx, "all,prefix=tac", "all,prefix=tic")
 	require.NoError(t, err)
 	r.WriteFile("toe/toe/toe.txt", "hello world", t1)
@@ -414,7 +423,7 @@ func TestMove(t *testing.T) {
 
 func TestTransformFile(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 	err := transform.SetOptions(ctx, "all,prefix=tac", "all,prefix=tic")
 	require.NoError(t, err)
 	r.WriteFile("toe/toe/toe.txt", "hello world", t1)
@@ -443,7 +452,7 @@ func TestTransformFile(t *testing.T) {
 
 func TestManualTransformFile(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 
 	r.Flocal.Features().DisableList([]string{"Copy", "Move"})
 	r.Fremote.Features().DisableList([]string{"Copy", "Move"})
@@ -476,7 +485,7 @@ func TestManualTransformFile(t *testing.T) {
 
 func TestBase64(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 	err := transform.SetOptions(ctx, "all,base64encode")
 	require.NoError(t, err)
 	file1 := r.WriteFile("toe/toe/toe.txt", "hello world", t1)
@@ -504,7 +513,7 @@ func TestBase64(t *testing.T) {
 
 func TestError(t *testing.T) {
 	ctx := context.Background()
-	r := fstest.NewRun(t)
+	r := newTransformRun(t)
 	err := transform.SetOptions(ctx, "all,prefix=ta/c") // has illegal character
 	require.NoError(t, err)
 	file1 := r.WriteFile("toe/toe/toe", "hello world", t1)