Have you solved the issue? Have you tried logging value of the variable before converting action?

Maybe the value that was provided the other morning was containing information which run the workflow into this exception?

Regards,

Tomasz

Hi Tomasz,

the issue is not solved, but i was able to get around

Maybe i have a problem of localization between my sharepoint (in french) and Nintex

At the beginning i wanted to display a decimal field in read only mode in a task form

It did not work because of number format, so i use a numeric workflow variable

It has worked during about 1 year, and since december not at all

So i use now a text workflow variable to get around

Regards,

JM