Yes I should have been more specific. on the attached pic the highlighted line with green arrow would not offset inwards.
Outwards had no problem...the only solution I could come out with is 2 draw a small line (red arrow) and sweep around.

Funny thing is I have reopened the file and the offset works now :/

Could it be my struggling laptop? Dell xps 8gb i5?

Thank you!

XG.