brownie verification issue on Arbiscan

[0xNarumi]

When I tried to verify my own strategy on Arbiscan, I receive the error message below. It seems like the issue is on Arbiscan's side. Is there anything I can do to resolve this on my end?

Verification submitted successfully. Waiting for result...
Verification complete. Result: Fail - Unable to verify. Solidity Compilation Error: Source "@yearnvaults/contracts/BaseStrategy.sol" not found: File outside of allowed directories.