A family of Microsoft relational database management systems designed for ease of use.
Your line 12 is a summary and is supposed to have just one task indented under it, but you have allowed the summary at line 14 and its tasks to be indented one click too far to the right.
Also, line 12 is indented one click too far to the right as well, so that it is at the same level as lines 8 - 11.
Two steps are needed to fix it. Select line 12, click once on the left green arrow. Select line 14, click once on the left green arrow.
Please note that this is in no way any sort of "bug". This is how MSP works and how it has always worked. You just need more practice to get the hang of it. Keep practicing.
Any help?