Runing a REST Request from another TestCase by Run TestCase breaks the REST Request

If a REST Request is invoked by a "Run TestCase Step" from another TestCase, the REST requests from the referenced TestCase breaks. The REST-Icon disappears and the edit dialog can not be opened of this broken rest requests.

Description of the process:

• Create the REST Sample Project
• Create a new TestCase at the TestSuite "Test account creation"
• Create a new "Run TestCase Step" and select the TestCase "accountcreation TestCase"
• Select the option "Create isolated copy for each run"

• Run this new TestCase
• After this the REST-Requests at the referenced TestCase are broken

• After the restart of SoapUI the REST-Request are available again