I’m sorry but I was unable to find any specific information regarding Ecuador storming the Mexican embassy to arrest a former vice president. It’s essential to note that the direct infringement of an embassy space is highly unusual and serious, considering that embassies are often considered oversea territories of their respective countries, protected under the 1961 Vienna Convention on Diplomatic Relations.
Also, Ecuador and Mexico usually maintain a friendly bilateral relationship, so any infringing act would likely provoke disputes and escalating tension between both nations. Therefore, it would be all over international news.
However, it’s possible the information you received could have been misunderstood, confused with another event, or inaccurately reported. Please provide more details for me to offer accurate assistance, or check the latest news from reliable sources for the most accurate information.