What is the main problem of the chosen solution structure - Module isolation without meta-information exchange - Logic duplication issues in modules - Violation of consistency between modules - Errors in financial report generation - Lack of a centralized deduplication system and related architectural complexities - Issues with accounting for delivery time aspects

The main problem of the chosen solution structure lies in the lack of a centralized system for exchanging metadata between modules, which leads to isolation and duplication of logic. This causes data inconsistency and complicates architecture maintenance, especially when deduplication and consideration of delivery time aspects are required. As a result, errors in building financial reports become a consequence of insufficient integration and coordination between modules.