HandleObjectComponent UPDATE - NOT WORKING

Hi, 

I'm facing an issue with a process step usign HandleObjectComponent (update)  when trying to update a field containing  a JSON string of around 25Kb, the field is set as nvarchar(max) so it should not be a field size issue....

On the other hand, DbQueue does not show any error on this process step however it just continues to the next step withouth updating the field.

Has anybody faced a similar issue by any chance?

Many thanks folks!

Regards