The thorn FishboneMoncriefID contains in its
schedule.ccl lines like this:
WRITES: hydrobase::velx(Everywhere) WRITES: hydrobase::vely(Everywhere) WRITES: hydrobase::velz(Everywhere)
which fail to compile with presync enabled since no such variable exists. The variable in HydroBase is
These names seem hard-coded in Tutorial-ETK_thorn-FishboneMoncriefID.ipynb so it is likely as simple as changing the notebook and regenerating the C source code.
Should be fixed before the release at it turns into a blocker once presync is merged into master (meaning the toolkit no longer compiles).