This site has a rather crumby search feature. Do click on the product first then enter a very short set of key words and MAYBE. I also use Google Search "ProConnect unsupported forms that can be attached" is an example. If there is an answer for Lacerte, then it should apply to this product.

The program also has a search feature at the top of the left column. Again - either a single number (like form #) or word will help to find input. 

The program has just as good a manual as Windows has 😁 

Ask here and other users will try to help as soon as possible.