dupeGuru reports error after successfully moving marked duplicate files to another folder

[web43037]

I don't understand well enough what is going on here to explain all the steps that generated the error. New user. I typically select many photos, swap which file is the reference, then select again and move the files to a folder to save them just in case. For the most these are JPG files, but I do have Picasa INI files and some HEIC, MOV and XMP files, too.

OS Name Microsoft Windows 10 Home
Version 10.0.19041 Build 19041
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name DESKTOP-OQ851MT
System Manufacturer HP
System Model 750-114
System Type x64-based PC

Application Name: dupeGuru
Version: 4.0.4 RC

Windows 10,

Traceback (most recent call last):
File "qtlib\table.py", line 85, in data
File "qt\results_model.py", line 39, in _getData
File "core\gui\result_table.py", line 43, in is_cell_delta
AttributeError: 'NoneType' object has no attribute 'get_display_info'

[arsenetar]

This should be a duplicate error that has been fixed in #905, recommend using the latest version at this point.