Iran-US agreement: Friday's talks postponed

The Swiss Federal Department of Foreign Affairs announced that the talks between the United States and Iran scheduled for Friday in Burgenstock have been cancelled. The mountain resort in Switzerland had been designated as the venue for initial negotiations between the two countries on the implementation of their agreement. Earlier this week, Iran and the US announced the finalization of the memorandum of understanding to end the war on all fronts, including Lebanon. Despite the official signing of the US-Iran agreement, Israel continues its strikes on southern Lebanon. What caused the scheduled talks to stall? What does this reversal mean for all parties involved? And in what areas can Iran and the US still engage in further detailed negotiations in the future?