MadMax Keeps Crashing after Switching from Windows to Ubuntu for Plotting

[imobe001]

System Specs: Ryzen 5800X 16 GB 3866 MHz Ram (stable in Ramtest) Temp: PCIe Gen 4.0 500 GB drive - formatted to XFS and crc=0 + discards + mounted noatime Farm: 18 TB HDD - formatted XFS OS: Ubuntu Ubuntu 20.04.2 LTS on an External SSD

So ever since I switched from Windows plotting (about 38 minutes per plot) to Ubuntu, I have had nothing but plot failures with the current error: chia_plot: /etc/X11/chia-plotter/include/chia/bitfield_index.hpp:45: std::pair<long unsigned int, long unsigned int> bitfield_index::lookup(uint64_t, uint64t) const: Assertion `bitfield.get(pos) && bitfield_.get(pos + offset)' failed.

I am running the following command (I have tried with 14, 15, and 16 threads):
sudo ./chia_plot -n -1 -r 16 -u 256 -t /media//plotter/ -d /media//WD18TB01/ -c poolKey -f farmKey

Any ideas as to what is going on or how to fix this? I really don't want to have to go back to plotting in Windows.

[jussipvainionpaa]

Try to run -r 8 Also try if you can get past this error by lowering your memory frequency to 3600MHz If there's no errors with 3600MHz, then try increasing the latency values by 1 when running at 3866MHz

[madMAx43v3r]

yeah RAM issue