I just saw this thread and thought I might be able to add some information to it.
On April 2nd 2019 I had a successful charge on an ABB unit in Salt Lake City with a 2015 Spark EV. According to my reliability spreadsheet it took one try on a random unit within the station. On June 12th, a few days after the app launched I think, the entire unit stopped working on my vehicle. On June 2nd after taking a really long drive (more than 80 miles non-freeway driving) I rolled into the Scipio EA supercharger with 1% battery. After L1 charging for 40 minutes I had a successful charge (I did this because of the weird faults I get when trying to do a 400v charge with less than 8% battery). When I went to the Beaver UT charger it ended up not working. All of the units above are ABB. I ended up going back to the Scipio supercharger and trying two different Spark EVs (three total if you include my Spark EV) and I think I even used a Bolt at one point. All failed except for the one off time I mentioned and the Bolt EV worked (I don't remember all of the charges, I have a reliability spreadsheet where detailed notes in of all my charging experiences are put). I also tried the Brigham City Supercharger which is an EA ABB station on December 5 of 2019 and it failed. There are 22 ABB supercharging units in Utah and I have charged at all of them except for the ones going in at Green River, Salina and Richfield and seldom had any issue with any of the cars I have charged (eGolfs, i3s, Bolts, Sparks, LEAFs).
What I am trying to say is that this seems to be an issue with a software update that bricked Spark EVs- it isn't hardware. I know the SAE CCS sockets on Chevy products are crap, but that doesn't stop the Signet charger in Spanish Fork from working with Chevys when I don't lift up the cable. At one point I could use ABB EA superchargers with no issues, was this the same for anyone else?