Reuters reports

  • Lega party doesn't want deficit to be lower than 2.2%
  • Five-Star party willing to consider 2.1% deficit, but no lower than that

That basically means that both parties i.e. Salvini and Di Maio aren't willing to consider a budget plan that would be in the region of around 2.0%, which Conte is looking to propose. This shows that the stall in discussions are likely to continue ahead of the proposed Tuesday submission date.

Something's gotta give eventually, and I reckon Salvini and Di Maio will eventually have it their way and we'll back be back to square one again with regards to the European Commission.