Interlaced playback problem

Ever since 2.1, every version of server has a problem with interlaced content…interlace content fields sometimes play incorrectly, if I stop the playback and try it again sometimes they play correctly, but it’s completely inconsistent, it feels like the field order upper first or lower first is completely random, all my files are 1080 50i … any ideas 2.0.7 no issues, 2.0.8 no issues

Just to confirm the same with server 2.2
The workaround I use is to render everything that has to be played to 50p, so field order can not hurt it.