global_h_elem_siz is called, but uses an empty value that doesn't get filled because h_elem_size doesn't get called on elements that have ei->ielem_dim == 1.
global_h_elem_siz is also used for some PG stabilization, changing it to fix this problem alone causes some of the test problems to break.
Recommendation is to implement element-block-level h_elem_siz (i.e. eb_h_elem_size) and use it in place of global_h_elem_siz in all cases.