I can't address "I can dash through adjacent crates causing me to fall through the Floor". Or location specific issues because you need to record your gameplay where that issue happened not describe in text because there is a lot of similar crates or assets or spots.
Also back button for restarting the scene works on my XBOX one gamepad and XBOX 360 controllers, what controller/gamepad are you using? The timer ticks UP so its not really ticking down on you; there isn't a reason to let it stress you out its clearly a function of the full game and not this alpha or beta builds. When the final game releases it will just show you your clear times for each level but thats for speedrunners not someone just wanting to play through the game normally.
Yes I have playtested the game in the current build and beaten every level but I'm just really good at it and never have the same issues at all with the gameplay. I can beat every level insanely quickly and never die so I don't know whats hard and what isn't.
Refer to my gameplay on youtube; its apart of the reason I have to playtest with a lot of people right now and make changes if I can.
I'm gonna tackle this list now based off of your feedback and then update the build when complete though thanks for playing;