I've tried updating to the latest version that LPub informed me about (update available 1.3.3 > 1.3.5) and I've had to turn off my my Avast Anti Virus as it recognised the installer as malware 
Does LPub3D need the path to an image I insert to be absolute or can it be relative too. I moved some files to a different location and had to reset the path to the cover image I used. A relative path would have avoided this situation.
Not sure if this is the best place to report issues, but here goes:
Inserting a front cover page doesn't work correctly if the current first page is a multi step page.
When you insert a front cover page on a normal page, a step is added before the current first step. No step is added if the first page is a multi step page so the inserted page isn't displayed. Manually adding a step solves this, but that ought to be automatic behaviour.
Does LPub3D need the path to an image I insert to be absolute or can it be relative too. I moved some files to a different location and had to reset the path to the cover image I used. A relative path would have avoided this situation.
Not sure if this is the best place to report issues, but here goes:
Inserting a front cover page doesn't work correctly if the current first page is a multi step page.
When you insert a front cover page on a normal page, a step is added before the current first step. No step is added if the first page is a multi step page so the inserted page isn't displayed. Manually adding a step solves this, but that ought to be automatic behaviour.