Bug report #19212
Build Virtual Raster in QGIS 3.XX
|Affected QGIS version:||3.0.3||Regression?:||No|
|Operating System:||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||27041|
The Build Virtual Raster tool (Raster/Miscellaneous) has an option to separate the bands you are processing or not. In QGIS 2.XX this option was stated as Separate, while in the new version 3.XX this option is shown as Layer Stack, which is confusing, leading to think that by clicking it you woud get all bands stack, while it does the opposite (keeping them separate).
I´d suggest you to change the text of that option to what it really does (Separate) for avoiding further confussions.