"Error locking tokens - Error: Invalid character" for non-integer vesting schedule amounts

[the-mercenaries-ltd]

If I go to https://vesting.bonfida.org/ and try to vest partial wrapped SOL tokens, i.e. 0.05 wSOL, then I receive the error "Error locking tokens - Error: Invalid character".

Vesting an integer of wSOL, i.e one full wSOL looks to work.