Hi,
Are you sure material created with by selecting all views for plant after entering material type and industry sector with t.code MM01
If yes, then check your user ID authorized to view all other material views excluding basic data - and basic data-2 views of your material number.1
If material not created with all views , then extend material views in t.code MM50
Also cross check your material type in t.code OMS2 and find allowed views for your material type!
Regards,
Biju K