<t>The log window is a bit fragile and doesn't always show the logs. However, logs are also written to the log files.<br/>
<br/>
You can access these logs from the Kudu console: <br/>
[https://[your-function-app].scm.azurewebsites.net/](https://[your-function-app].scm.azurewebsites.net/)<br/>
<br/>
From the menu, select Debug console > CMD<br/>
<br/>
On the list of files, go into LogFiles > Application > Functions > Function > [Name of your function]<br/>
<br/>
There you will see a list of log files.</t>