So if your mobile is not working with this or any other SP theme then the problem is going to be on the mobile end not the SP theme end, So – any errors in the error log that may be related?
Andy, I had a look in the toolbox–>error log and in the error log on the server.
No errors at all.
Shame. Problems on mobile can be very, very hard to solve as there are no suitable and sensible tools on offer. So – perhaps a few questions first…
You say the page doesn’t show up using any SP themes – correct?
Have you reset the CSS cache if you are using it?
When did this issue start?
Can I have a link to the forum page as well?
Andy, the page shows up but with no CSS.
Pretty much, a white page with words on it, like a list.
I did reset the CSS cache.
I never had the issue because I wasn’t using a template for mobiles.
To access the forum, you need to be a member. The page is not visible to the public.
I am sending you the access with username and password via PM, I set up the account as admin for both WP and SP.
Are you completely up to date with SP – core and any plugins you may have active?
And can you go to the forum admin > Options > Global Settings and turn off the CSS cache completely to see what happens when it is not even trying to use it…
Unbelievable…
I turned off the CSS cache and now it’s working perfectly on mobile as well!
The only thing I cannot see it the bottom part “Unread and recently updated topics”. I need to find out why…
But everything else is just perfect!
Thank you so much! 
Now I have to see why “Unread and recently updated topics” is not showing up and I take advantage to ask another question (hopefully the last one!)…
Regarding “Unread and recently updated topics”, how can I make those fonts bigger? I cannot find what controls it.
I think by default we don’t show the “Unread and recently updated topics” section on a mobile. Anything to save the volume of the download is the motto there. And there are so many other ways of getting at the new and unread posts like the quicklinks and the inline forum new post list.
That section on the desktop is in a div with the class names of .’spListSection .spListViewSection’ and the font is set by default to 100%.
The way to find out, by the way, it to use the web inspector which comes with your browser – they all have one these days I believe, Would save you time asking…
All done Andy!
I just found out something quite strange…
The forum is on a page with a sidebar on the right end side, where there is the widget “Recent forum posts”.
Now, I tried to see how the forum looks like on a full page by switching off the widget.
The problem is: all the buttons “Report this post to admin”, “Quote”, “Edit” and so forth just disappeared!
The icon with the link to the toolbox disappeared as well.
Is there something I can do to prevent this to happen?
Small update…
The icons (I only have one at the moment, the same for all the forums) from “Unread and recently updated topics” are gone too…
As a non-logged in user I seem to be seeing all of the icons I would expect on your forum page… What do you see in their place? Do you see an empty browser placed icon? If so and you copy the url from it and then paste it into a new browser tab what happens
There is absolutely nothing in their place, just empty space.
I looked at the “Unread and recently updated topics” where the image should be, right clicked it and the URL came out as
http://www.irsa-stringers.com/wp-content/sp-resources/forum-themes/rebootchild/images/lightpack/sp_TopicIconSmall.png
But with a 404 error, page not found…
So I copied the folder “Images” from Reboot and put it in rebootchild. Still nothing…
Funny enough, the image Add topic (sp_NewTopic.png) is there where it shoud be…
But if I put the widget back in the sidebar and the forum narrows down, all the images are there.