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# Mantid Workbench Changes¶

## Bugfixes¶

• Log-scaling has been fixed in waterfall plots.

• Opening multiple instances of Mantid in quick succession will no longer cause errors in the shared settings.

• A large number of crashes, caused by opening an Algorithm Dialog and populating it with a WorkspaceGroup, have been fixed.

• It is no longer possible to crash mantid when opening an interface’s help documentation for the second time.

• The ISIS logos have been updated to match the UKRI rebrand.

• Fixed a change in behaviour after upgrading Qt, where floating point numbers in the matrix data view were not displayed unless the column was wide enough to show all digits.

## InstrumentViewer¶

### Bugfixes¶

• The instrument view startup time has been improved by avoid checking for masking if it is not present.

• Fix crash when overlaying peaks in side-by-side view of instrument viewer which is not supported.

## SliceViewer¶

### Bugfixes¶

• Fix for the colorbar bug where using log scale causes slice viewer to throw exception with all masked slice.

• The colorbar now remains autoscaled when switching between the different normalisation options.

• SliceViewer will now support W_MATRIX log for nonorthogonal axes with MDHistoWorkspaces. This prevents a bug related where basis vectors are used to calculate the projection.

• Fixes a bug in the SliceViewer where a workspace is replaced by an algorithm with more than one output workspace.

• For 3d+ datasets, SliceViewer will now automatically open to the zero-slice if present.

• Ensure that all nan/inf and zero slices work while using log-scaling.

• Fix a bug where the axes limits of 1D cut viewer plot were not autoscaling on cut update after the user had zoomed or panned.

• Added a check on toggling non-orthogonal view off that ensures the non-axis cutting tool is not enabled if the workspace does not support non-axis cuts (e.g. is 4D).

Release 6.5.0