The "Item roles" cannot show the check status on configure page(like the picture blow), but it has already been load and take affect on premission system. At this status, once I check sonething and save, the old check matrix will fully lost and only the new checked will be saved into config.xml. And after refresh of save, this check matrix is still totally empty. But the matrix of "Global roles" can show perfictly.

I have tried rollback the plugin into 743.v142ea_b_d5f1d3 but keep Jenkins at 2.512. The checkbox matrix of Item Roles can show correctly but the "Add User" buttom of Item Role seems take no affect, even no popout for input username