I will create a list here of known issues with the hybrid functionals and known deviations from ancient fleur
- HSE is not supported in new fleur version
- EXX is not supported in new fleur version
- There seems to be a dependence of the agreement between the old and new fleur versions on the lnonsph cutoff. Maybe this is related to the lcutwf parameter.
- We obtain results differing from old fleur results if the basis set is smaller than the number of eigenfunctions to be calculated.
Edit: Renamed to correctly reflect what is still broken and what is not.