When implementing economic integration, the issues one may encounter include loss of national sovereignty, unequal distribution of benefits among member countries, trade diversion, increased vulnerability to regional economic shocks, political instability, lack of infrastructure, regulatory and legal hurdles, cultural and language barriers, and financial risks such as currency fluctuations. The question asks which of the following is not a problem one may encounter with economic integration. Based on typical and well-documented challenges, difficulties such as loss of control over domestic policies, inter-country disparities, and increased competition are common problems. Thus, if options were for example including problems like "unequal benefits," "trade diversion," or "loss of sovereignty," those are indeed problems. On the other hand, something like "economic isolation" or "complete autarky" would not be a problem because economic integration is aimed at reducing isolation, not causing it. To deliver the best precise answer, please provide the list of options to identify specifically which one is not a problem encountered in economic integration. Otherwise, the commonly recognized problems are summarized above. If a list is provided, I can identify the item that is not a problem one may encounter. Would it be possible to share the actual options?