Comment 155 for bug 1589401

I'm posting this here merely because another bug page on launchpad says that that thread,is actually a duplicate of this one, even though it seems it's not.
I'm on Peppermint, which is still ubuntu under the hood, all else works fine, except from time to time, with no explanation, regardless of whether waking up from a sleep session , or a full reboot, sometimes nm-applet loads fine, sometimes it doesn't, and displays this as an error:
(nm-applet:2962): nm-applet-CRITICAL **: get_menu_item_for_ap: assertion 'dup_data.hash != NULL' failed

The laptop is dell i1720 - if it at all matters - and it's a Peppermint 7, with all currently known secure updates applied, and Xenial "under the hood".

Can anyone please provide a fix, even an unofficial one ?
Thank you