Make sure you are truly using the latest Smartremote-sample downloaded template.
Which means, download it, and then back up your custom (if you modified it) smartremote template. Then rename smartremote-sample to smartremote.
Try this.
If that works, then cautiously add back your custom web pages into the smartremote folder until it breaks. Then you know what broke it.
I am on the very latest template (downloaded it again just to be sure, even though per Dashboard it was already latest version). Same behaviour:
Repeat button presses: As before. Just to add, the consequence varies from device to device (and app on device). Cable box native OS - arrow keys work as expected. Cable box netflix app - every arrow press results in a double action. Pi running Kodi - variable, usually just one action but the audible 'click' to confirm a button press sounds three times (once, short pause, two in quick succession). This does not happen when using Harmony native app on tablet, for example.
Volume - identical behaviour. Long press caches repeated volume commands which continue to be sent after button released.
Re Harmony Commands - where do I find full list? Is it 'press' + name of command lifted from the list on the Harmony standard overlay? Or should I be looking elsewhere?
Thanks
