In Bionic virtual machine, I had .13 in bionic-updates installed, started update-manager from a terminal, selected 'Software Updater' in the list and clicked 'Install now'.
The installation completed successfully and the view was automatically recalculated. The application didn't crash (no tracebacks in the terminal window) and 'apt policy update-manager' says that the installed version is .23.
In Bionic virtual machine, I had .13 in bionic-updates installed, started update-manager from a terminal, selected 'Software Updater' in the list and clicked 'Install now'.
The installation completed successfully and the view was automatically recalculated. The application didn't crash (no tracebacks in the terminal window) and 'apt policy update-manager' says that the installed version is .23.