3307734 - Message "SubProcess relations contain a cycle" in convention check result of a BPMN model

• The following alert display in the convention check result for ”Collapsed Subprocess" element.
  
  "Process structure warning"-"SubProcess relations contains a cycle"
  
  
• Copy the model to a new model, and doing the same convention check doesn't get the same alert.

SAP Signavio Process Manager

Loops can occur when a subprocess is linked to a parent process. This only happens if the hierarchical structure is not maintained.
To keep a proper hierarchy, do not link a subprocess to a process of the same or higher process level. 

Please correct the modeling as per the suggestion in the guideline:
https://www.modeling-guidelines.org/guidelines/absence-of-subprocess-relation-cycles/

Absence of subprocess relation cycles

SAP Signavio, Process Manager, Explorer, Editor, BPMN modeling, convention check, Process structure warning, SubProcess relations contain a cycle , KBA , BPI-SIG-PM-MOD-EDT , Graphical Editor for SAP Signavio Process Manager , Problem