Category page issue - products not aligning correctly

Hi

Kind of difficult to put this in the correct words. On some of my category pages the products aren't aligning correctly, not an issue with sort ordering but the page has empty spaces where products should be. There are not products missing, just paces for products skipped.

For example, there is supposed for be 5 per row. There are 5 on the first row, 3 on the second row, 4 on the third row etc..

I have attached two images which might make it clearer.

Any help would be welcomed.

1. What is the full Opencart version?
2. What is the store url?
3. Is that the default template?

Hi,

OC Version - 2.3.0.2
Store URL - here's a link to a category which is experiencing the issue http://www.houseoftea.ie/green-tea/japan-green
Default Template - It is not default template

Quite confusing.

I tried on Chrome and Firefox and it's showing fine. Which browser are you using?

It seems to work fine on Chrome and IE but I am using Firefox and it's not showing as it should.

Could be a cache issue maybe? What OS do you have?

That's what I initially thought but it's definitely not cache, happening across different OS's on different computers on different IP's.