The way you have this laid out, there really are not nodes involved. The path ways would all just get used, every one of them. For example, after exiting the sales agent existing customer sequence, it would goto both the task and sequence that follows. The same would be true for the wait for buy which would go to the tag applications and the sequence all at once.
I don’t know your goals here but it looks more like you intend to have conditional paths and this will not do anything conditionally.
Shot a short vid to explain a bit better:
https://www.useloom.com/share/f9ccfdc7056243769edbe3272d42f228