Distribution List issues

Since day 1 of purchasing membership to eM Client, I have never been able to properly use a Distribution List.  As I can see from the other posts with DL, I am not the only one.
Is there a way of fixing this?  I have tried so many ways, creating and adding 5 emails to my list, if I try to use that list, the software shuts down and reboots.  If I try to “edit” the list, the software shuts down and reboots.  If I try to send an email using the DL, the software shuts down and reboots.
A Developer tried to help me once or twice over the past year but it never works then the issue is pushed aside and forgotten about.
Unfortunately, this is making me feel like I should look for another email client BUT I love eM Client and I don’t want to switch.  You have an almost perfect software and I get that glitches happens but please, help me if you now have a solution or redesign the whole Distribution List module.
In hopes of making this work,
Nathalie