This thread is resolved. Here is a description of the problem and solution.
Problem: Gravity forms conditional Logic translation was not working
Solution: Usually, conditional fields have Label and Value, so if you want to show the conditional fields on both translation languages you need to translate label only and set the value as not translated, if you translate the value, the conditional fields don't work. So, go to Strings Translation and uncheck "Translation is complete " checkbox for the conditional fields values if translated.
This is the technical support forum for WPML - the multilingual WordPress plugin.