AttributeError: 'GXXmlWriter' object has no attribute 'WriteEndElement'

Hi,

I'm starting by reading the object list from meter and then saving it in a file, but the saving process is giving me the following error:

File "\AppData\Local\Programs\Python\Python39\lib\site-packages\gurux_dlms\objects\GXDLMSObjectCollection.py", line 253, in save
it.save(writer)
File "\AppData\Local\Programs\Python\Python39\lib\site-packages\gurux_dlms\objects\GXDLMSFunctionControl.py", line 381, in save
writer.WriteEndElement() # Activations
AttributeError: 'GXXmlWriter' object has no attribute 'WriteEndElement'

I have successfully save the object's list when there is no function control object so I think it is related to that module. Any ideas?

Thank you in advance.