bottom Flange Lateral bracing

I am modeling a skewed multi span steel bridge with cross frames and bottom flange lateral bracings. I was able to place the cross frames but when I tried to place the lateral bracing based on a suggestion from Bentley community about bottom flange lateral bracing, I am getting the following message:

I am showing the framing plan for the bridge below, has anyone have an idea on how I can fix this?

Thank you,