Not sure why all three are not opening for you?
But you could maybe try a ctrl launch of Photo.
Go to Applications > Launchpad. When it opens find the Affinity Photo icon.
Before clicking on it, first hold down the control key on your keyboard and then click the app’s icon in Launchpad. Keep holding down the control key until you see the attached window open.
The first three items should be preselected, now click the button marked 'Clear' in the bottom right corner.
Hopefully this will clear whatever internal issue the app was having and allow it to launch correctly.
If this works then you could try the same thing with the other two apps.
Teresa A reacted to markw in The new versions will not open.