Final answer:
Small CubeSat programs face technical limitations due to their size, funding issues because of constrained budgets, and regulatory challenges related to space laws and debris.
Step-by-step explanation:
Issues associated with small CubeSat programs include technical, funding, and regulatory challenges. Technical issues may involve limited space for instruments, which constraints the CubeSat's abilities compared to larger satellites. Funding issues are a concern, as many small CubeSat projects have limited budgets, making it difficult to sustain the program or cover unexpected costs. Moreover, regulatory challenges may arise, as CubeSats must adhere to international space regulations, requiring a long process to obtain frequency licenses and ensure they do not contribute to space debris.