why when i reinstall UHD, Gnuradio & gr-ettus Digital Gain is not there in GRC enviroment?

[sp h]

why when I reinstall UHD, Gnuradio & gr-ettus  Digital Gain is not there in the GRC environment?

Some GRC block like Digital Gain,  FIR, Add sub  you can see list RFNOC blocks in below...

Gnuradio 3.8.1, UHD 4.0.0 ,

rfnoc_block_addsub        rfnoc_block_fosphor        rfnoc_block_replay
rfnoc_block_axi_ram_fifo  rfnoc_block_keep_one_in_n  rfnoc_block_siggen
rfnoc_block_ddc           rfnoc_block_logpwr         rfnoc_block_split_stream
rfnoc_block_duc           rfnoc_block_moving_avg     rfnoc_block_switchboard
rfnoc_block_fft           rfnoc_block_null_src_sink  rfnoc_block_vector_iir
rfnoc_block_fir_filter    rfnoc_block_radio          rfnoc_block_window