Firefox currently. I could probably try resubmitting with another browser.
I had a look at your template. Did you use this for the Clandestine preamp? I noticed that there is one big difference on the top side (A). You have one value that is 12.1, whereas mine has it at 27.305. I think that is for the LED which would probably line up where the Clandestine LED is. The only other difference is the right hole on the top which is 1 mm smaller since it will have a switch instead of potentiometer.
I changed the value to 1 decimal place as suggested and still end up with the same error when submitting it. I double checked the order thinking maybe I had maybe ordered the pre-drilled enclosure by mistake but that wasn't it. Also double checked I ordered the 125b drill service instead of a different sized enclosure.
I guess at this point, I will have to wait for Hugo to get back to me.