I ran into a problem today and thought that I’d share it here because I found a solution.
I have a dynamic block of a door that I needed to explode and then trim. But every time I tried to explode it using the EXPLODE command, the block would disappear. I was able to successfully explode the block by using the BURST command. Even though this command is meant for blocks with attributes, it worked perfect for this problem. So if you run into this problem as well, use BURST.
(Note: The BURST command is an “Express Tool” so it is not available in AutoCAD LT)