No output when using joins

[felixp23]

I am trying to map an xml mqtt stream to rdf using the followoing parent triples map and join condition:
rr:predicateObjectMap [
rr:predicate sosa:observes;
rr:objectMap [
rr:parentTriplesMap <#CapacitiveSensorObservationMap>;
rr:joinCondition [
rr:child "References/Reference[@ReferenceType='HasComponent' and not (@IsForward='false')]";
rr:parent "@ParentNodeId";
];
];
].
When using this join condition on a snapshot of the xml data stream I send via mqtt on RMLMapper it works. Also when I use this snapshot as xml-file input for RMLStreamer it works, but when I constantly send the xml data as a stream and I want to map it, all other predicateObjectMaps are being mapped, but the parentTriplesMaps don't. I also tried to use "marker" join conditions as mentioned in a previous issue, but that didn't work either. I don't know what could be the issue.

I have the used mapping file as .txt file attached together with a snapshot of the xml data.
Short_Mapping.txt
Snapshot.txt
This is the ouput I get from the streamer, every time a new xml instance is sent:

Furthermore, I encountered the issue that when I use different TriplesMaps on the same stream, I have to use the same iterator in these maps, otherwise I don't get an output at all.
Thank you for your help.

[s-minoo]

Can you try something similar to this example stream-join mapping file to define your join?

Especially the part with rmls:joinConfig

Let me know if it works with that!

[felixp23]

Hello thank you for your quick answer. I tried to do it exactly like the provided example and my predicateObjectMap now looks like this:

With the corresponding JoinConfigMap:

Unfortunately, this didn't change anything in my output, everything else is mapped, but there is no output concerning the join. I tried it again with the "marker" join condition as well but still no change.