Text background Mask issue

Hi All I am working in Bentley Projectwise.In my microstation connect  version & ORD  MH text background is not masking properly

where as Conduit text is masking properly how to fix the Mh background issue globaly in my file

all the conduit text  is not havng any issue its masking the background properly 

if i do text background mask manually for each Mh it will save but globally i cant fix this issue at 1 time