I had some minor stability issues when intensively using current and current-1 beta.
Take this code (again :)):
x As Double
y As Double
items(2) As Vec2D
Dim a As VectorArray
a.items(1).x = 5
a.items(1).y = 4
a.items(2).x = 3
a.items(2).y = 2
PrintL a.items(1).x, a.items(1).y
PrintL a.items(2).x, a.items(2).y
When I go through it using F8 key in debugger, sometimes it ends ok, sometimes it GPFs on the end.
It is quite rare, no idea why it should crash.
Side note: The UDT variable inspection works great