Patrick Wespi

On viewer-dev.ohif.org only 1 of the 3 viewports is black. https://viewer-dev.ohif.org/viewer?StudyInstanceUIDs=1.2.840.113619.2.290.3.3767434740.232.1619607454.466&SeriesInstanceUID=2.16.840.1.114362.1.12114306.25269253871.637892513.276.716  The bug only happens if reset is the first action done. If you enter MPR first, exit again,...

I don't know what the root cause is, but making this change in `extensions/cornerstone/src/commandsModule.ts` seems to help: ```diff - viewport.resetProperties?.(); + const defaultProperties = viewport.getDefaultProperties(); + viewport.setProperties(defaultProperties); ```

There seems to be a new `instanceIndex` property on the items that is required but not documented. When I add `instanceIndex: 0,` to my custom items, they show up again.

Thank you @peitschie for your help in debugging this. Seems to be resolved now.

This is expected because not all devices advertise a name. Do you have a peripheral where you expect a name and don't get one?