Lubuntu LXDE panel not appearing on login after upgrade to 17.04

[cupoflinuxun]

Hi all

Lubuntu 17.04 LXDE 32 bit
LXpanel 9.3.1ubuntu1

The system was just upgraded from 16.04 -> 16.10 -> 17.04
On completion of upgrade and first boot after LXDE loaded. System reported it had encountered a internal error
the details of which pointed to LXDE panel. The panel is not present it flickers briefly on at start before disappearing
By running "lxpanel" in terminal a default panel appears.

The strange thing is on approximately 10% of logins/boots it works The panel loads correctly!
II have tried changing the panel config(~/.config/lxpanel/<Profile>/panels) from the LXDE website to no avail.
https://wiki.lxde.org/en/LXPanel

Is this issue known or reported elsewhere?
What else can I do here?
Should I just do a fresh install of 17.04?

Regards
cupoflinuxun

[mörgæs]

Should I just do a fresh install of 17.04?

Yes, that will be my recommendation. I never do an upgrade myself.