Layout Grid Misbehaviour

[donjohnson24]

I'm having a problem with adding another Layout Grid to my page https://www.donjohnson24.co.uk/projects.html which is demonstrated by my copying the lowest Layout Grid below the original.
The added Layout Grid contents do not appear side-by-side as the original, but vertically stacked.
Am I doing something wrong, or have I exceeded some limit, or what?

[crispy68]

I have looked at your page but it is not clear to me what your issue is. When I view the page the last 2 grids on the page look identical to me.

[donjohnson24]

I have looked at your page but it is not clear to me what your issue is. When I view the page the last 2 grids on the page look identical to me.

So, five minutes after I posted, you see the page as it should be, and four hours later, after reading your post, so do I !
It would not appear to be to do with caching, as when I change and republish, the changes appear, just not formatted as expected.
I thought that as my host was doing a host migration yesterday, perhaps it was something to do with that, but it seems not.

I re-edited and published the page (the third row from the bottom is the actual insertion) and at first it appeared OK, but then a further re-edit and publish did not change the refreshed page. However, after restarting Chrome the page appeared correctly.

It seems my host is sluggish in some areas, or it is to do with caching.

Thanks, crispy68, for your input.