Why multiple decisions process chain shows RED sign after successfull completion?

Hi

I create a process chain containing multiple Decisions processes after Start process:

1. Every decision process having it own processes tree.
2. Only one decision process is true at a time i.e. every time process chain run only one decision will true so its own processes tree will execute only.

But after successful completion of process chain shows RED sign instead of GREEN sign.

How to resolve it?

Thanks

Imran Shafiq