What are three potential flows with regular payback method?

Three potential flaws of the regular payback method include its disregard for the time value of money, as it treats all cash flows as equal regardless of when they occur. Additionally, it does not consider cash flows that occur after the payback period, potentially overlooking long-term profitability. Lastly, it may lead to biased decision-making by favoring short-term projects over more profitable long-term investments.