Comsol crashes when exporting filter as mesh part

Hi, I am currently struggling when trying to export a filter group as a mesh part. When importing the filter data set, Comsol crashes without giving any warnings. This is only the case when using the lower bound for the import, everything works fine when using the upper bound. I also get the error message:

Java exception occurred: java.lang.NullPointerException

at com.comsol.clientapi.engine.APIEngine.runMethod(SourceFile:214)

at com.comsol.clientapi.impl.MeshSequenceClient.run(SourceFile:594)

when running the model from MATLAB. I'm unable to figure out what's going on here, what causes this issue?