I'm trying to import SAS formats for CDC's Youth Risk Behavior Survey. I have the SAS data set file and format catalog. They work in SAS, but when I try to import them into Stata they bomb.
My command is:

import sas using "C:\yrbs\yrbs2019.sas7bdat", bcat("C:\yrbs\formats.sas7bcat") case(lower)

But I get a series of error messages, even though the SAS formats are legal and work in SAS.

note: invalid string value for value label H1S, skipped
note: invalid string value 1 for value label H1S, skipped
note: invalid string value 2 for value label H1S, skipped
note: invalid string value 3 for value label H1S, skipped
note: invalid string value 4 for value label H1S, skipped
note: invalid string value 5 for value label H1S, skipped
note: invalid string value 6 for value label H1S, skipped
note: invalid string value 7 for value label H1S, skipped
note: no values defined for value label H1S, removed

Any thoughts on how to fix this?