Layout template is being ignored

Hi, I’m using Store locator in a multilingual site, but I’ve come across something I can’t find an explanation for.
I changed a bit of HTML and added bootstrap to the Layout template
(Store Locator > Addons > Advanced Theme Manager > Layout Template), to style it the way I wanted to.
I copied everything from the English website to the Dutch website, but it seems the Dutch one won’t use the current Layout template.

Here’s a screenshot of the inspector: http://i.imgur.com/14njwDa.png
(the left one is the current/custom layout template, the right one is the standard)

Is there a way to make the Dutch website use the current/custom layout template instead of the standard one, without reinstalling the plugin?
(Also, I’m using version 3.98, but it says it’s the most recent one)

https://ww.wp.xz.cn/plugins/store-locator/