So - if this is a reproducable bug / defect, then...
- Support would be the folks to contact with this (so they can check it / duplicate it / submit it).
- Since you've not specified what version / release you're on (i.e. "EPM 2017.3 + SU1" for example), can't exactly say how out-of-date / in-date you are with your software stack.
That's something that support will be able to help out with (for instance, if you're 1 year behind, then chances are that this may have been addressed in the updats during that year).
That's the way forward on this one. Contact support & submit the bug (/check for updates for your version / build).