Hey @daria_ivnc , I also got to the bottom of the missing parameters.
That is simply because Speckle is ignoring null values, and if a parameter has never been set in Revit it is null.
If you fill the “Comments” parameter you should then see it in Speckle as well. Please let us know if it’s a deal breaker for you, as a matter of fact we’ve been discussing nulls internally quite intensively in the past 