Content by label not working

Question

I'am using content by label macro on my pages and since yesterday or today it stopped working.

When adding pages with the proper label they don't show in the macro

Tanya Katina · Answer

Faced the same problem.We assumed that the problem is that labels are used that are nested inside each other. For example, release_n and release_n_m.
If you click on the release_n label, the pages with the release_n and release_n_m labels will be displayed.
If you click on the release_n_m label, the pages displayed by the release_n label will not be displayed.
 
Get rid of pages with the release_n label by replacing the release_n label with release_n_m.
This partially helped. After the replacement, the part of the pages that worked incorrectly began to work correctly. The rest continued to be displayed with the release_n label and was not displayed with the release_n_m label.
I had to completely remove all their things. Make sure that the release_n label does not display anything, and only after that put the correct labels again.As a result the following steps may help you: * Find all nested labels. 
* Design the markup so that nested labels are not used. 
* Remove all labels that are contained in other more "narrow" ones. 
* Apply the new markup.

Daniel Hnyk_oo9j40 · Answer

I can create a new label, but pages to which this label is applied just takes undeterministic amount of time (in the order of hours) to get indexed by the whole system

Lasse Kamp · Answer

I have the same issue. Also can not create a new label