Same issues.  Just stopped working a couple days ago.  Very disappointing.  Folks with Quest3 seem to not be having the issue, but that is a heavy price to pay when I just renewed my subscription to SLR, and the Quest2 is supported.
Haptics Connect (Phone App) --> Kiiroo Keon/Powerblow --> Quest2 --> DeoVR  (Infact DeoVR says Haptics connect is no longer supported)
Quest2 --> DeoVR --> Kiiroo (Bluetooth) still not supported.  (THIS SHOULD BE THE SUPPORTED METHOD)
Opened ticket, hopefully I hear something back.