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			 Connoisseur 
			
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				AttributeError: 'DeleteAction' object has no attribute '_remove_format_from_ids'
			 
			
			
			I just ran a convert on one of the epubs in my library to smarten the punctuation. After checking that the conversion had worked OK, I went to delete the ORIGINAL_EPUB format of the book, and got the error below. When I check the folder in the Calibre library containing the book, it has both the .epub and .original_epub files there. 
		
	
		
		
		
		
		
		
		
		
		
		
	
	Running Calibre 6.7 on Windows 11. I've run the same process many times with older versions of Calibre, and not had this error before. Code: 
	calibre, version 6.7.0
ERROR: Unhandled exception: <b>AttributeError</b>:'DeleteAction' object has no attribute '_remove_format_from_ids'
calibre 6.7  embedded-python: True
Windows-10-10.0.22621-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.22621')
Python 3.10.1
Windows: ('10', '10.0.22621', 'SP0', 'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: DeDRM (7, 2, 1) && Kobo Utilities (2, 16, 6) && KoboTouchExtended (3, 6, 3) && Obok DeDRM (7, 2, 1)
Traceback (most recent call last):
  File "calibre\gui2\actions\delete.py", line 189, in remove_format_by_id
AttributeError: 'DeleteAction' object has no attribute '_remove_format_from_ids'
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			 null operator (he/him) 
			
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			I just experienced the same problem upon updating to Calibre v6.7.0. I've attached a composite screenshot here. Frizzell9  | 
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			 Well trained by Cats 
			
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			 Custom User Title 
			
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			Calibre 6.7.1 is now available with the fix.  
		
	
		
		
		
		
		
		
		
		
		
		
	
	 
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