**System Information**
Operating system:
Windows 10
Graphics card:
Quadro GP100
**Blender Version**
Broken:
(example: 2.79b release)2019-02-24 22:02 893fa598319e
**Short description of error**
(example: 2.80, edbf15d3c044, blender2.8, 2018-11-28Click the corner of areas and try drag to merge, as found on the splash screen)only split more areas out.
Worked: (optional)
**Short description of error**Tried right click and join, but not work.
**Exact steps for others to reproduce the error**
Based on the default startup or an attached .blend file (as simple as possible).click the corner of the areas and drag to split, try split more with vertical and horizontal, and now do join area operation with either drag corner, or right click area corner `join areas`