Error using filter param with whitespace on external oData API Request

Hi there,

I am calling an external (oData) REST API. But when I want to filter (see image below) the result on a single item I get an Error.

Error: The types 'Edm.Boolean' and 'Edm.Guid' are not compatible.

I see that the request is executed with: $filter=ID+eq+1234-efg3-4abc-b0ef-8hid8hi076b1

First I tried to use several filters like url_encode. But that results in $filter=ID%2Beq%2B1234-efg3-4abc-b0ef-8hid8hi076b1

Then I tried to use %20 instead of a whitespace. But that results in $filter=ID%2520eq%25201234-efg3-4abc-b0ef-8hid8hi076b1

But now I am stuck. Looking forward to a solution?