DotNetNuke module missing from page

Question

I have a a strange problem with nuke modules i've been developing for a nuke 4.8.4 site.

I have one module that just refuses to allow another module to be placed BELOW it in the same pane. Everything loads fine as long as it is the last module in the pane, but if you move it above the other modules, the others won't load.

I originally thought that it was something odd in the markup of the module causing it to layer over the others - but when I view source on the page, the other modules don't even exist in the source.

Has anyone seen this issue before, and if so, how did you fix the problem?

EDIT: We've built a dozen modules - and ONE module does this on my machine, but a DIFFERENT module does this on another developer's machine. On each machine, the module that is broken for one dev works fine for the other.

Another interesting thing that we've noticed is that in the case where ONE of these modules is on a page, the GetTabModules will return 2 rows for the one module, both with the same ModuleID.

Answer 1

It sounds like your module code is blowing up DNN. I'd run the site with a debugger attached and step through the code that is instantiating the modules.

Answer 2

We uninstalled & reinstalled the offending modules, and they work fine now. Must have been some sort of bug in the install process. I'm going to upgrade to 4.9.2 and see if we run into similar issues there.