New installation failed on KDE Neon (Ubuntu Bionic based) with the following message;

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Starting pkgProblemResolver with broken count: 1
Starting 2 pkgProblemResolver with broken count: 1
Investigating (0) bitmask-qt:amd64 < none -> 0.10.7+0~20180713202612.67551+0.10.7+bionic~0.g5cbbf052 @un uN Ib >
Broken bitmask-qt:amd64 Depends on python-pyqt5.qtwebengine:amd64 < none | 5.11.3+dfsg-1+18.04+bionic+build9 @un uH >
  Considering python-pyqt5.qtwebengine:amd64 1 as a solution to bitmask-qt:amd64 -1
  Holding Back bitmask-qt:amd64 rather than change python-pyqt5.qtwebengine:amd64
Investigating (1) bitmask:amd64 < none -> 0.10.7+0~20180713202612.67551+0.10.7+bionic~0.g5cbbf052 @un puN Ib >
Broken bitmask:amd64 Depends on bitmask-qt:amd64 < none | 0.10.7+0~20180713202612.67551+0.10.7+bionic~0.g5cbbf052 @un uH >
  Considering bitmask-qt:amd64 -1 as a solution to bitmask:amd64 9998
    Reinst Failed early because of python-pyqt5.qtwebchannel:amd64
    Reinst Failed because of python-pyqt5.qtwebengine:amd64
Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 bitmask : Depends: bitmask-qt but it is not going to be installed
E: Unable to correct problems, you have held broken packages.