Hi @thekendog,
I’m really sorry you’re having issues with this!
This is actually a known issue that we have open here:
https://github.com/wp-media/imagify-plugin/issues/521
Our developers do have this in their schedule to be worked on very soon, we hope to have this fixed sometime soon, though I can’t offer a specific date at this time.
Unfortunately, until this is resolved with an update you may need to try using a free tool like https://pixlr.com/ to resize your images before uploading them to your site. Then Imagify can optimize them after and they would end up being the correct size (WebP images included).
Please let me know if you have any further questions on this and I’ll be very happy to assist however I can!
Best regards,
Joseph