2019 MA Form 2 Schedule B/R won't accept 0 for percentage of income

I am working on the tax returns for a trust that doesn't distribute any income or capital gains.

I am ready to e-file but the Schedule B/R under Massachusetts Form 2 would not accept 0 for Percentage of Income. This error prevents me from e-filing.

 

Has anyone encountered the same problem? Looks like this is a software error in the range check of this field. Zero SHOULD be accepted.

 

Please help. I really don't want to paper file the returns.