Morning Mock 1 Exam - FIFO with Temporal

There is a question that seemed vary simple at first, then very hard, then simple. Questions just asked to find the gross profit margin and gave revenue and COGS. Method was all current, same average rate applied. However, questions gave a lot of additional detail on the inventory accounts… specifying historic inventory specific balances, etc. Any thing that we need to be specifically aware of regarding inventory and COGS on translation questions. Obviously for temporal you use the historic rate that aligns to the time of sale, but with FIFO/LIFO, any red flags I should be remembering?