Data Loss after usb connection

[hedrox87]

I have a strange problem that occured today after a year of using Z2 without any issues.
I've connected my phone to PC to drop/backup some important photos I've made with Win explorer (as usual, sd card, copy, paste to C:\\user\documents\photo... etc.) and after the backup copying was complete I saw in explorer that 6 Gigabytes in Sd card were gone. I went back to see if photos copied properly and they did, but Z2 has erased also movies, settings, music and e-books from SD card... it went completly stock with only android folder on board. Restarted the phone, see if it will recover SD itself but all media was gone, in settings, application some of the sony apps were dated to February 1970 ?!?! There was no background defocus and AR effect in 1970 right?? Scanned the phone and Win7 with Avast, Spybot 2015 and BitDefender... all devices and PC are clean and protected. Any one had same bug?

[Uliwooly]

Your SD card its acting up, probably corrupted, I've seen other people with similar issues and it was the SD card. 

@alexdon & @Thommo Have suggested Recuva to restore data on the SD card

[hedrox87]

thanks, I'll monit the SD card for some time and see how it will act. Never had issues with this SanDisk earlier, all apps are using internal storage, so I'm quite shocked. I'll format it clean and reinstall.
Still don't quite know why internal storage got affected, I see all apps and things in internal storage but I'm sure there was more folders on it.

[Uliwooly]

That is indeed odd, keep us updated.

[hedrox87]

Should I somehow erase data on the apps that are 1970's to have them back to 2015 or just ignore and use them as they work correct?

[Uliwooly]

Just ignore them.