For some reason there's a whitespace in the returned string from the Open-AcanoAPI -Post function. Workaround is to .Replace(" ","") on the returned string like this
https://github.com/tomlarse/PsAcano/blame/a6495b787c1eac7c30b3c32290dfebff691a27f0/psacano/psacano.psm1#L386