diff --git a/internal/atlas/export_test.go b/internal/atlas/export_test.go
index 0d112d37d..3a17b180e 100644
--- a/internal/atlas/export_test.go
+++ b/internal/atlas/export_test.go
@@ -39,12 +39,6 @@ func ResetImageSizeForTesting() {
 	maxSize = oldMaxSize
 }
 
-func ResetBackendsForTesting() {
-	backendsM.Lock()
-	defer backendsM.Unlock()
-	theBackends = nil
-}
-
 func (i *Image) IsOnAtlasForTesting() bool {
 	backendsM.Lock()
 	defer backendsM.Unlock()
diff --git a/internal/atlas/image_test.go b/internal/atlas/image_test.go
index d85e4dee3..d0968541e 100644
--- a/internal/atlas/image_test.go
+++ b/internal/atlas/image_test.go
@@ -527,9 +527,10 @@ func TestMaxImageSize(t *testing.T) {
 	img.ReplacePixels(make([]byte, 4*s*s))
 }
 
-// Issue #1217
-func TestMinImageSize(t *testing.T) {
-	ResetBackendsForTesting()
+// Issue #1217 (disabled)
+func Disable_TestMinImageSize(t *testing.T) {
+	// The backend cannot be reset. If this is necessary, sync the state with the images (#1756).
+	// ResetBackendsForTesting()
 
 	// This tests that extending a backend works correctly.
 	// Though the image size is minimum size of the backend, extending the backend happens due to the paddings.