DCMTK

The worklist server does not match correctly if it needs to match a single value against a multi-valued data element inside its database. The most popular attriute here is "Scheduled Station AE Title" which has VM 1-n. If the server receives a single value (like "CT1") and a job contains multiple values (e.g. "CT1\CT2"), then no match is generated. Only a query "CT1\CT2" will produce the result. This is not conformant to the DICOM standard which states in Annex K of part 4:

K.2.2.3 Matching Multiple Values
When matching an Attribute which has a value multiplicity of greater than one, if any of the values match,
then all values shall be returned.

It has to be checked whether further supported attributes besides Scheduled Station AE Title are affected.