@NathanReed I came to the exact same conclusion as you. Which made me wonder if there were multiple valid definitions for how the transformations are defined

@PieterGeerkens glMatrix does not give me an option for prepend or append

I added images of what is going on. Thank you for the interest and help

I'm fairly certain they are not swapped. I'm doing a translate, rotate, translate, and rotate to the square and I'm getting a different result with the new version of glMatrix. But if I just do a translate and then a rotate then both versions of glMatrix give the same result.