I have a series of frames that I want to make into an infinitely looping animated GIF. I want frames 00–18 to have a delay of 125ms but the frames after that to have a delay of 200. I try:

convert -delay 125 "resized-0[0-9].jpg" "resized-1[0-8].jpg" -delay 200 resized-19.jpg "resized-2[0-9].jpg" -loop 0 animation.gif

But animation.gif plays the first 8 frames, goes to the first, then goes in some strange order whose origins I am clueless about.

I have tried not using quotes as well.