There are times when you dash back and you are unable to hold block for overrun, even though you are not in cooldown. For example, if you dash back two times in a row and hold block.
But this mechanic for other champs is much smoother. For example, for CMM, you can dash back two times in a row and hold block, and the timer begins.
I believe this is a bug because there is nothing in the descriptions of these champs that would indicate that there should be a difference in the way the mechanic works.
Please make CB's overrun smooth like the other champs. This small change would actually make a big difference in tricky fights.
Below are some short clips demonstrating the discrepancy:
https://drive.google.com/file/d/1KIvZMxNbYJAYMz7erwpuxUXjkOu58l_m/view?usp=sharinghttps://drive.google.com/file/d/1KHBjmKi5Uci90awxM5ShEXDM0gO8oQve/view?usp=sharing