I am not seeing any changed to the device type. Are you getting any errors during the backup?
This has already been resolved.
This discussion was my first attempt (and first time user) to get this issue resolved. I opened up another discussion, "Can no longer perform ASCII backup on ERS8610 after upgrading KiwiCattool to 3.10.0", which listed the cause and resolution. All is now good at my end.
Sorry about the redundant discussion and confusion.