The best way to get someone's attention during this beta is to form the subject of the thread as [2.3.4.xxx] C7 (or C5 depending on what you have) Insert problem issue here.
List it under integrations board. This is an open beta vs the closed beta section (which you can join, just send an msg to @bobbyD to participate) Though for the purposes of this open beta, it's best that everyone sees it and can chime in and give more datapoints if possible.