Analog 4 note slide won't work!

Hi all but I don’t seem to be able to get note slide to work on my A4

I basically followed all the steps on this video here;
all the trigs and bank G lights up as described
but there’s no note slide audible

Could it be because of some global settings?
I checked the legato box and set the portamento to legato

or could it be anything to do with note length?
Eg Trig A on step 1 and trig B on step 5 (which i want to slide into), note length of A should be 4, is that right?


Look here


One more thing to know…

And I found out the reason for my problem;
When polyphonic is on, note slide will become inactive