The Purging Associations problem with the Aeotec Smart Switch 6 is a FIRMWARE VERSION on the switch.
If you contact Aeotec, they will email you firmware that fixes your Smart Switch 6, IF you have a Zwave USB stick.
I didn’t feel like buying a USB stick, so I mailed my Smart Switch 6 to CHRIS CHENG at Aeotec support. Chris upgraded my firmware at no charge and sent it back to me. GREAT SERVICE!
Thanks Chris, my Smart Switch 6 now works fine.