Adjusting period start/end date problems

Ashleigh • Gave birth to my first on 2/21/15. Lincoln James. 💙
The edit period feature REALLY needs to be fixed. Whenever the end of my period falls on a Sunday, I can't adjust it if it ends early. Even if I delete it and try to readd it. This is really really annoying. 
​I've already emailed Glow to fix it but I shouldn't have to do this EVERY single time. 
​Please tell me this is something that will be fixed in the next update.