problem editing groups..

hi all
when I want to edit a group I usually I pick some fixtures and merge them into a group.. so far so good...

when I pick some groups and merge them in another group it just does not take them all.. strange behavior..

then.. when I pick some fixtures and "record remove" from a group.. it takes away a couple of the fixtures but not all... it even messes up some other groups, which have totally nothing to do with all this...

these are problems i never saw on Hog3.. now I'm running on 1.2.0 (b540) on a "real" Hog4..