A numeric looking text column cannot be converted to number

I apologize for the delayed response due to my busy schedule. I'm experiencing an issue with a measure in Power BI. There's a relationship between the 'Value' field in the 'Time_period' table and the 'Value' field in the 'Master_Table'. However, when I try to use the measure to fetch the selected value from 'Time_period'[Value] independently, it returns a blank value.

When I break the relationship then and its working fine. No need to convert the value field in Master_table into numeric value.