Can't see subtopic connectors

this is screenshot of nov.21.2019 youtube. I can see curve(line) which connects (sub)topics.

and this is screenshot of dec.4.2019 my prezi. I cannot see curveline.
(What… newcomer cannot put more than one picture??)

I want to see curveline.TT

Hi @111183, The topic connectors you see in that video have been since removed with an update regarding topic reordering.
Hope this helps!