diff --git a/backend/union/union.go b/backend/union/union.go
index a803a7e51..1c178d9ab 100644
--- a/backend/union/union.go
+++ b/backend/union/union.go
@@ -181,6 +181,9 @@ func (f *Fs) Purge(ctx context.Context, dir string) error {
 	errs := Errors(make([]error, len(upstreams)))
 	multithread(len(upstreams), func(i int) {
 		err := upstreams[i].Features().Purge(ctx, dir)
+		if errors.Cause(err) == fs.ErrorDirNotFound {
+			err = nil
+		}
 		errs[i] = errors.Wrap(err, upstreams[i].Name())
 	})
 	return errs.Err()
@@ -504,6 +507,9 @@ func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
 	}
 	for _, u := range f.upstreams {
 		usg, err := u.About(ctx)
+		if errors.Cause(err) == fs.ErrorDirNotFound {
+			continue
+		}
 		if err != nil {
 			return nil, err
 		}
diff --git a/backend/union/upstream/upstream.go b/backend/union/upstream/upstream.go
index 2a58048e8..d8679a091 100644
--- a/backend/union/upstream/upstream.go
+++ b/backend/union/upstream/upstream.go
@@ -335,6 +335,9 @@ func (f *Fs) updateUsageCore(lock bool) error {
 	usage, err := f.RootFs.Features().About(ctx)
 	if err != nil {
 		f.cacheUpdate = false
+		if errors.Cause(err) == fs.ErrorDirNotFound {
+			err = nil
+		}
 		return err
 	}
 	if lock {