Weird warning: Missing 'Instance' in relation E xInstance.h2s -> [Instance.something]

[gitting-around]

When running java -jar maestro.jar import -v Sg1 test.json coe.json -output . for generating a spec, the following warnings show up:

23:39:03.773 [main] WARN  org.intocps.maestro.framework.fmi2.api.mabl.FromMaBLToMaBLAPI - Failed to find instance required by relational information from simulation env. Missing 'rabbitmqInstance' in relation E pressurepipeInstance.h2s -> [rabbitmqInstance.h2s]
23:39:03.775 [main] WARN  org.intocps.maestro.framework.fmi2.api.mabl.FromMaBLToMaBLAPI - Failed to find instance required by relational information from simulation env. Missing 'rabbitmqInstance' in relation E pressurepipeInstance.h2s_timestamp -> [rabbitmqInstance.h2s_timestamp]
23:39:03.784 [main] WARN  org.intocps.maestro.framework.fmi2.api.mabl.FromMaBLToMaBLAPI - Failed to find instance required by relational information from simulation env. Missing 'pressurepipeInstance' in relation E rabbitmqInstance.flow_timestamp -> [pressurepipeInstance.flow_timestamp]
23:39:03.784 [main] WARN  org.intocps.maestro.framework.fmi2.api.mabl.FromMaBLToMaBLAPI - Failed to find instance required by relational information from simulation env. Missing 'pressurepipeInstance' in relation E rabbitmqInstance.flow -> [pressurepipeInstance.flow]

Same setup as in Issue #385.