Viscous Puddle Punch has a small window where Viscous cannot self cube or jump

[Stack Man]

During a Puddle Punch, there's a small window where Viscous cannot cast The Cube on himself. He is able to properly before and after this window.
In this video, you can see the "self cube" prompt appear when I try to press the button, but nothing happens.

This also happens with jumps, double jumps, and wall jumps.

View attachment self cube forums.mp4