diff --git a/openpype/lib/transcoding.py b/openpype/lib/transcoding.py
index 526a73de08..adb9bb2c3a 100644
--- a/openpype/lib/transcoding.py
+++ b/openpype/lib/transcoding.py
@@ -493,8 +493,9 @@ def convert_for_ffmpeg(
             erase_reason = "has too long value ({} chars).".format(
                 len(attr_value)
             )
+            erase_attribute = True
 
-        if erase_attribute:
+        if not erase_attribute:
             for char in NOT_ALLOWED_FFMPEG_CHARS:
                 if char in attr_value:
                     erase_attribute = True
@@ -623,14 +624,16 @@ def convert_input_paths_for_ffmpeg(
                 erase_reason = "has too long value ({} chars).".format(
                     len(attr_value)
                 )
+                erase_attribute = True
 
-            for char in NOT_ALLOWED_FFMPEG_CHARS:
-                if char in attr_value:
-                    erase_attribute = True
-                    erase_reason = (
-                        "contains unsupported character \"{}\"."
-                    ).format(char)
-                    break
+            if not erase_attribute:
+                for char in NOT_ALLOWED_FFMPEG_CHARS:
+                    if char in attr_value:
+                        erase_attribute = True
+                        erase_reason = (
+                            "contains unsupported character \"{}\"."
+                        ).format(char)
+                        break
 
             if erase_attribute:
                 # Set attribute to empty string