Wouldn't a LR plugin be easier to use for this purpose, "If any images were found to be wrong then i would just re-open Lightroom and correct them."
Data Explorer can do this and more:
Any Filter can identify image files 'Not Equal' (!=) to a specific aspect ratio crop.
You can even create tiered filters for multiple aspect ratios:
Any Filter has a learning curve, but can make some very complex filters not possible with Data Explorer. Don't dismiss it on first glance! It has saved my hide many times searching for image files with (and/or without) specific LR settings. The ability to use multiple criteria in the filter sets it apart from most other LR filter plugins.
They look interesting, will investigate. Do the images have to be pixel perfect to get an aspect ratio match with them? Arti was designed to show the nearest matching aspect ratio from a user editable input list, to get around that very problem.
Yes, Jeffrey’s “Data Explorer” Lightroom Plugin seems to work very well too. I've never heard of it until now.
I think perhaps Arti is still useful though, especially for people that either don't use Lightroom, or actually use (or have used) multiple editing software by different makers.
Data Explorer has these options:
Camera image file aspect ratio should be exact out-of-camera and when using LR/ACR crop ratios such as 3x2 (1.5), 4x5 (.8), etc. When using the LR/ACR Crop presets such as 2x3 (0.66666), 5x7 (.71428), etc. I believe they are only accurate to 3 decimal places (0.1%).
This may be of interest:
Ty Trshaner, I appreciate the feedback