I've noticed lately, maybe after the last Craft update or two, that internal 500 errors no longer show information or error traces. I simply get a message like:
Internal Server Error Undefined offset: 0
And that's all it will show. I've checked that devmode is set to true, and in dashboard it shows that devmode is on. Is there a particular reason this would be happening? Maybe because the error is coming from a plugin and not twig? Or a general setting I'm not aware of for more detailed errors? It used to show all the information I needed.