MAX10 UFM timing

I had thought the avmm_data_waitrequest was only applicable to the data register not the control register. Waitrequest is not shown in timing diagrams for reading of control register in the UFM User Guide. Diagram shows output on next clock after avmm_csr_read goes high. However I do see waitrequest get asserted in the simulation when the control register data becomes valid so maybe that is the issue. In which case the documentation seems misleading. Thanks.