User:TBeholder/sandbox

Here's how the styles are broken:

= L1 Header 1 = This will show correctly:

L2 Header 1.1

 * Example 1.1.1
 * Example 1.1.2

L2 Header 1.2

 * Example 1.2.1
 * Example 1.2.2

= L1 Header 2 = Here the format will be broken, but preview will not catch it:

L2 Header 2.1

 * Example 2.1.1
 * Example 2.1.2

L2 Header 2.2

 * Example 2.2.1
 * Example 2.2.2