Object Classify - Strange ID numbers

Hi,

I did a factory reset for a fresh start and then I was training the HL for handwritten numbers 0-9. I prepared about 4 or 5 images for each number and then started the training process by holding down the right button, while scanning all the images of each number.

It stopped learning after number 7 and the frame numbers would not increment and ID assignments would not show anything but 0.

Then when I wanted to see whether anything could be recognized by the camera, I started seeing ID numbers that were huge positive and negative:

It looks like, it experienced some kind of failure where the ID number assignments started overflowing the assigned number range.

When I query the camera for the number of learned blocks, it keeps displaying 1000.

As it is now, I am not able to train more than 7 numbers out of 10.

Can you tell me if this is a bug ? And if so, how an I remedy the problem.