i don`t know why but it is impossible to translate static block using WPML.
I am using Xstore flowers theme and the block name is Footer flowers.
main language is Russian and block is duplicated to Latvian and translated.
Site URL: hidden Theme version: 188.8.131.52 (child 1.0)
You have chosen the ru version of the static block to display in footer widgets that’s why you got it for both: RU and LV versions. We would recommend you to add language localization for the static blocks title to avoid problems and choose correct block http://prntscr.com/n6bsk6