Material Editor preview window camera moves only backwards

I’ve been having this issue a while now but still haven’t figured it out. I’m on a macbook without mouse and in-editor and in-pie, all controls except orbit/rotate respond as expected. But when in the material editor, any attempts at trackpad navigation or wsad move me backwards about 100% of the distance between me and the object. Only opening a new material, or sometimes re-opening the same material will resolve this but I can’t seem to do it from the preview window itself.

Can anyone suggest a workaround to this?