Since the Speedy Shades don’t have a “FrontFaceAttachment” property, (I’m assuming) that this is why they don’t work when you use the accessory adjustment on them. Here are some pictures and a video to show; I am using the Lin’s glasses as an example in these clips.
This is the Lin’s glasses accessory having the property in its data:
And this is the Speedy Shades not having the property in its data:
Here is a showcase of what happens when you try to use the accessory adjustment on the Speedy Shades compared to the Lin’s glasses.