[Hierarchical Symbols]

I've noticed that if I

 

1. Create an object (square) and turn it into a symbol A

2. Create an object (circle), group it with an instance of symbol A and create a new symbol B

 

This works fine. However, if I then

 

3. Create an object (triangle), group it with an instance of symbol A and create a new symbol C

 

Suddenly all instances of symbol A are removed from instances of symbol B and start to produce strange, erroneous behaviors where they first can't be selected and then eventually disappear.

 

Instances of symbol C remain intact UNLESS, I try to group symbol A with a new object and create a new symbol. In which case, it suffers the same fate as symbol B.

 

This is a consistently reproducible problem, so it should be easy to test.

 

Please allow us to create sub-symbols and allow them to be members of multiple other symbol groups. This will save a lot of time for my development process.