STEPS TO REPRODUCE
1. Launch iClone 6
2. Apply a Non-Std character Fox
3. Go to Modify > Edit > Spring, check the drop-down list of Select Spring, there are 3 items (lEar, rEar and tail01)
4. Click "Open", apply .spx file which saved by 3DXchange 5
5. Go to Modify > Spring, check the drop-down list of Select Spring

ACTUAL RESULT
Only Hip left

EXPECTED RESULT
There also are 3 items(lEar, rEar and tail01) on the drop-down list of Select Spring