Date Format and Lookup keys Version 2 not working

Hi this is using the APIDOCS
In the filter field i have IDX_RESSOURCE= {EMPNUM}
looks like this from the APIDOCS

http://45.35.50.168:8080/api/v2/UKScheduler/_table/UKPlanner.vw_myobtasksforalerts?filter=IDX_RESSOURCE%3D%20%7BEMPNUM%7D&limit=10

I have set up a Global lookup key as EMPNUM set that to 100 and made it private.. I get the following error

{
"error": {
"context": null,
"message": "Field 'IDX_RESSOURCE' must be a valid integer.",
"code": 400,
"trace": [
"0 C:\Bitnami\dreamfactory-2.0.1-0\apps\dreamfactory\htdocs\vendor\dreamfactory\df-sqldb\src\Resources\Table.php(599): DreamFactory\Core\SqlDb\Resources\Table->parseFilterValue('{EMPNUM}', Object(DreamFactory\Core\Database\Mssql\ColumnSchema), Array)",