Drobo 5C not recognised in Finder since firmware update

Hey so I updated my firmware last night to 4.2.3 (Drobo dashboard is 3.5.2) and is now sporadically appearing and disappearing from my Mac, it is also either causing (or being caused by) Lightroom to crash and not find the library as it’s stored on this Drobo.

On the same day I had updates for OS which is now Mac OS 11.4 and also the Adobe suite in particular Lightroom, Photoshop and Camera RAW.

Any suggestions? I’ve got a diagnostics report from the Drobo