Art downloaded locks fullscreen preview

[Morphy 3]

Hi think I've found a bug with the android application and viewing artwork. When selecting edit images within a movie, if I then press the magnifying glass to search for more, then press on an image to preview it and go fullscreen. Then pressing back on my tablet 4.4 Android does nothing and I cannot exit this image preview at all. On my nexus 5 with Marshmallow I get this error:

Net::ERR_FILE_NOT_FOUND (file:///Android_asset/www/dlg(long number not sure if sensitive)

Then it force closes.

[Morphy 3]

Any acknowledgement that this is a known bug please?

[Luke 42077]

Yes I'm looking into it, thanks.