SMD MOSFET to power down my SMD H-Bridge

I will just omit C3. I didn't realize it was a problem. I added C1 thinking that was what you meant to do. C3 is just what I put next to all chips I use as a decoupling cap. I didn't know it was interfering with the P channel MOSFET. Thanks for explaining that. I kinda understand it now.
I'll be sure to turn the h bridge signals off before turning off the P channel.
Thanks!