Do you have it moved to an extra SD card? I know with my Xperia Play I had to wait about a minute after the phone booted up before I could use apps I had moved to the SD card.
Lumia 920 // Xperia Z // Xperia TL // Xperia ion // Xperia P // iPad 3
Sony Smartwatch // Sony Smart Wireless Headset pro // Sony LiveDock™ // Xperia ion Smartdock
iPhone 1st Gen/3GS/4S // Nexus One // Dell Streak // Atrix 4g // Xperia Play // Lumia 900 // Xperia S // iPad 1
Click here for my Xperia firmware downloads.
Thanks button if I helped.