In case it may be relevant, note that currently there's a bit of a glitch in how our Discounts Editor screen displays discounts. This only affects how discounts are (or aren't) displayed there, but does not affect the actual discounts themselves.
When you select a Discount Name from the Current Discounts menu, discounts named using any non-alphanumeric characters (i.e., anything other than letters, numbers, and spaces) currently fail to list their actual Discount(s) saved under that Name.
Meanwhile, until our Devs fix that glitch, if you want to view/edit/delete an existing discount but can't load its settings by selecting its Discount Name from the Current Discounts menu, you can instead select "All Discounts" in that menu and find your discount in the list that will appear. We realize this may be a bit tedious if you have a lot of discounts, but hopefully that workaround will not be necessary for much longer.
Aside from that, we're not quite clear what else you may be trying to describe. Could you contact us here to tell us which discount group names you're having trouble with, if you'd rather not share those details publicly here? We'd be glad to take a look at those discounts in particular.