Unable to Invert Matrix?

I got this error recently I dont know any techincal stuff and the way fixed it is I just start to delete all the layers present at the frame it was giving the error and then when I deleted a 3D text layer it got fixed so I control+z all the deletes and just click the 3D checkbox on that layer in the timeline to make it a 2D layer, then made it a 3D layer again and the error was just fixed

This error still exists. Encountered it during two projects of mine. 

It is usually a single element that you added that just doesn't sit with AE for some unkown reason. Find that layer/ element and remove it form the project. 

That is what worked for me. 

Adding this to the community in 2022.  Hope it helps. 

Hey there,

had the same problem.

It happened at the same time, as an jpeg disappeared.

Long Story short :

After checking any kind of faults like fps, comp sizes and so on - I deleted positioning frames of that one jpeg.

And voila.

They were misinterpreted with words as value, instead of a number.

Perhaps this helps the AE World.

Bests

Nothing has changed from six years ago - it's an internal math error that literally can occur under a gigazillion conditions. Could be some effect going bonkers, could be a specific render setiing messing up encoding, could be just pure circumstance due to a combination of certain functions. Since you have not provided any info about your project such as at least doing us the courtesy of providing a link to the site you got it from plus system information we can't tell you anything more than that. You have to be much more specific. If it always fails at the same point, start by checking what exactly happens at that time in your timeline. Posting screenshots here might also help others to guess/ deduce what might be wrong.

Mylenium