Fixed a bad assertion for the case when the auto-embed is not triggered and screenshots cannot be grabbed.
Fixed a bad assertion for the case when the auto-embed is not triggered and screenshots cannot be grabbed.

xJom/mbunit-v3,mterwoord/mbunit-v3,xJom/mbunit-v3,mterwoord/mbunit-v3,mterwoord/mbunit-v3,Gallio/mbunit-v3,ajayanandgit/mbunit-v3,Gallio/mbunit-v3,xJom/mbunit-v3,xJom/mbunit-v3,xJom/mbunit-v3,mterwoord/mbunit-v3,Gallio/mbunit-v3,Gallio/mbunit-v3,ajayanandgit/mbunit-v3,ajayanandgit/mbunit-v3,ajayanandgit/mbunit-v3,ajayanandgit/mbunit-v3,mterwoord/mbunit-v3,xJom/mbunit-v3,ajayanandgit/mbunit-v3,mterwoord/mbunit-v3,Gallio/mbunit-v3,Gallio/mbunit-v3,Gallio/mbunit-v3