While editing the host or template - when clicking on "Add" (Trigger->Dependencies->Add) or "Select" buttons (Trigger->(Expression) Add->(Item) Select) i see some items/triggers not from the selected template or host? but from some random host in the alphabetically-first host group.
It is obvious bug, which leads to vasting time when configuring triggers and may be very annoying when we have deal with a lot of Host groups and the are a lot of hosts inside this groups.