Unable to remove cells (sub-fixtures) from groups

[DC3]

Desk Type: Arena
Software Version: V12
Hardware Setup: 1 x Arena + 1 x TNP (on closed Nv2 wireless network)

Issue: Unable to remove cells (sub-fixtures) from groups

Steps to reproduce:

1. Create a group containing an amount of cells.
2. Unfold the fixtures containing the cells.
3. From a clear programmer, press <Group> followed by the cell group created in step 1
4. Attempt to deselect some cells (each cell tile has to be tapped twice to show as deselected?) from the fixtures workspace
5. <Exit>
6. Recall the cell group, the fixtures workspace shows the previously deselected cells to be highlighted and still part of the group

Additional notes:

During step 4, after tapping the cells twice within the fixtures workspace, although the cells show as deselected, they are still listed in the selection list across the top of the window suggesting that the cells are never deselected despite fixture workspace feedback.

This issue has been observed in previous software versions.

[sideshowbond]

I can confirm I have seen this in 11.4