Problems creating materials in V.26

[2raarchitecture]

Dear all,

M boss got this message "in Arch26, when I create a new material there is a problem with the hatch patterns…a question mark shows up and the hatch is solid black." Has any of you encounter a problem like this? 

[ryejuan]

have you checked if you have a missing library?

[2raarchitecture]

Thank you kindly for your reply. I also thought so. Please, what are other problem originating options if you may... thank you kindly for your time and help