Widgets and buttons not working after packing into HTLM5

Good evening, once again.

Sorry for the spam but attempting a project in HTML5 is being… a bit of a challenge.

After managing, with the help of a forum user, to finally get my project to be seen in Web (Google Chrome), with its models, materials, TP controls, lighting, etc… the next problem arises.

Interface and buttons.

Before getting into a serious interface I’ve decided to just try a couple of buttons with simple functionalities to see if they work. Once exported to web, the interface appears as and where it should, but the buttons do absolutely nothing. They don’t respond to click or hover or anything. I have tested the same functionality of the buttons by associating them to keys and in that case there is no problem, but I can’t manage to click a button.

I’ve seen several posts about the same thing on the forum and got no response. But at the same time I have seen posts from other users where it is understood that their web games do have functional buttons, so there must be a way.

I’ve tried everything I can think of, but nothing gets the button to work.

Any help, again, is appreciated.