Error with dx_max_sort

Running the current master (ade031dd) and a simple hydro-only test of the EAGLE_6/.1 volume I'm seeing the error:

     128   3.906250e-05    1.0000000    0.0000000   6.103516e-07   42   48       136923            0            0            0              1562.567      0
[0000] [00019.4] runner_doiact_functions_hydro.h:runner_dopair1_branch_density():1235: particle shift diff exceeds dx_max_sort in cell cj. cj->nodeID=0 ci->nodeID=0 d=-7.581169e-01 sort_j[pjd].d=-7.567527e-01 cj->hydro.dx_max_sort=1.280516e-03 cj->hydro.dx_max_sort_old=6.805188e-04
application called MPI_Abort(MPI_COMM_WORLD, -1) - process 0

The configure line is:

./configure --with-metis --enable-debugging-checks

and run command:

mpirun -np 4 ../../swift_mpi --hydro --threads=1 -n 256 eagle_6.yml

This is on my ubuntu 20.04 laptop, will check COSMA.