Hallo thanks,
Now is my SD card working.
It seems to me that there is some issue with internal formatting software as well.
With 4.4.3 was my brand new SDHC Sandisk 32GB Class 10 USH-1 not working.
I upgraded to 4.4.4, put there empty SD card previously formated in PC and formatted it in phone. But card wasn’t working.
I tried to format it again in PC but PC was not able to mount it. I tried 2 another PC’s but it seems that card was damaged. I was very frustrated as it look like Moto G had damaged my new card.
But fortunately I’ve got old Nokia Phone, and as last attempt I’ve got idea to read it in this old Nokia.
And old good Nokia was able to mount the card and I was able to format it again.
Then I put it in PC and copied some stuff on it as you recommended and it was working!! Thanks for advice.
And lesson learnt – do not format your SD card in Moto G and do not insert empty card either.