Security Tests are not saved after running

We experience the following problem: After running Security Tests, all changes made to the executed Security Tests are lost.

Does someone else recognize it?

The github project for Soap UI does not seam to have an issue tracker. Where can I submit issues?

Environment:

 - Operating System: Windows 7

- java -version:
java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)

Preparation:

Create a project with at least one test case. The test case must have at least one Security Test. The project must be saved to file before the next steps.

Steps:

1. Run the Security Test

2.Change something in the Security Test.

3. Project > Save Project

4. Project > Save Project As, save it to a different file.

5. Close Soap UI.

6. Launch Soap UI

7. Open the project.

Expected: The changes to the Security Test are there.

Actual: The changes to the Security Test are lost.