Sitecore Forms are not displaying Issue

Problem

While working with Sitecore forms  9.x version, We usually face issue that sometime Forms not display.
To resolve this issue we generally do index rebuild. Even after this form still not displaying.

Root cause

        Generally this issue occurs because of indexAllFields set as False. 

Fix

Please click here to download patch config and add at your path ~/App_Config/Include/zzz

Note: This fix will work for any of azure/solr/lucene search providers.

Hope this works.