Please create a test case. Perhaps its just loading too quickly :).

AJAX tabs in 2.0 use session storage, which means if you have already loaded a tab once in a browser session it will reload instantly the next time.

Surely if the code is as follows it shouldn't cache :

 $('.fixed.home.menu .item')
  .tab({
    context : 'parent',
    auto    : true,
    alwaysRefresh : true,
    parseScripts : true,
    ignoreFirstLoad  : false,
    cache : false,
    path    : './', 

 });

  <a class="item" data-tab="statement.php">
    <i class="dollar icon"></i>Account
   </a>

 <div class="ui bottom attached tab segment" data-tab="statement.php">

 </div>

but when I look in the console under the network tab it is caching it and not reloading the page.
Used to work in 1.12.3 so not sure what's changed as I've set cache to false.

But when I look in the console it states :

Top level cache setting is not currently passing api settings correctly.

For now you can just fix with specifying API settings

$('.fixed.home.menu .item')
  .tab({
    context : 'parent',
    auto    : true,
    alwaysRefresh : true,
    parseScripts : true,
    ignoreFirstLoad  : false,
    apiSettings: {
      cache: false
    },
    path    : './', 
 });

Will fix.

Already tried that, unfortunately with no avail :

I'll fix in first patch, not sur whats going on.

I've fixed tab to go back to using its own internal caching, which should now be obeyed with cache: false. This was necessary as well for evaluateScripts: 'once'; to work correctly.

I've added additional examples to docs as well.