Applin, Robert (STFC,RAL,ISIS) commented:

Hi Adam,

It should be possible to reproduce by opening the Mantid nightly, opening the Interfaces->Direct->ALF View interface, and then closing that interface using the ‘x’.

I see, thank you. I’ll investigate to see if there has been a change in Mantid visualisation between 6.6 and 6.7 in the meantime.

Thanks,

Rob