The two versions of those pkgs I have installed are signed by artix (March 25th).
Now they are no longer on Artix:
warning: wxgtk-common: local (3.1.2-1) is newer than world (3.0.4-2)
warning: wxgtk3: local (3.1.2-1) is newer than world (3.0.4-2)
Did they come from gremlins and then dropped?
There were problems with 3.1.2, Arch has reverted to previous version (3.0.4) and so have we.