Added FAQ

FAQ.md

@@ -330,6 +330,7 @@ Fonts, sizes, colors, etc should be material design whenever possible.
 * [(175) Why should battery optimizations be disabled?](#user-content-faq175)
 * [(176) When will a message be considered safely transported?](#user-content-faq176)
 * [(177) What does 'Sensitivity' mean?](#user-content-faq177)
+* [(178) Why are widgets not updating?](#user-content-faq178)
 
 [I have another question.](#user-content-get-support)
 
@@ -4541,6 +4542,16 @@ The sensitivity indication is sent as [a message header](https://datatracker.iet
 
 <br />
 
+<a name="faq178"></a>
+**(178) Why are widgets not updating?**
+
+Apps provide the layout and data for widgets on demand, but the homescreen app/launcher manages all widgets, with a little help from Android.
+
+If widgets are not being updated, this is often caused by missing permission.
+Please see [this video](https://www.youtube.com/watch?v=ywQrYJ6rtnM) about how to fix this.
+
+<br />
+
 <h2><a name="get-support"></a>Get support</h2>
 
 &#x1F30E; [Google Translate](https://translate.google.com/translate?sl=en&u=https://github.com/M66B/FairEmail/blob/master/FAQ.md%23user-content-get-support)