Lightswitch DateTimePicker renders incorrectly on another server
<p>I have a Lightswitch DateTimePicker which works fine on my development machine.</p>

<p>When running from an external server the following screen is displayed :</p>

<p><a href="https://i.stack.imgur.com/lLNQN.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lLNQN.png" alt="enter image description here"></a></p>

<p>The day dropdown shows "/msls/dateTimePicker_dayNumberAndDayPattern" for all days in the dropdown.</p>

<p>Cannot see any missing JS files from the installation.</p>