Some valid expressions are not parsable

[ScreamingTree86]

Hi,
i have some Problems with this library, i tried some of the examples from your website like: https://confluence.ihtsdotools.org/display/DOCSCG/6.5+Expression+With+Nested+Refinements

For example the expression
373873005 |Pharmaceutical / biologic product| : 411116001 |Has dose form| = ( 421720008 |Spray dose form| + 7946007 |Drug suspension| )
Leads to a nullpointer

java.lang.NullPointerException
at org.snomed.authoringtemplate.service.LogicalTemplateParserService$ExpressionTemplateListener.enterAttribute(LogicalTemplateParserService.java:108)
at org.snomed.authoringtemplate.service.generatedlogicalparser.ExpressionTemplateParser$AttributeContext.enterRule(ExpressionTemplateParser.java:1056)
at org.antlr.v4.runtime.tree.ParseTreeWalker.enterRule(ParseTreeWalker.java:66)
at org.antlr.v4.runtime.tree.ParseTreeWalker.walk(ParseTreeWalker.java:49)
at org.antlr.v4.runtime.tree.ParseTreeWalker.walk(ParseTreeWalker.java:52)
at org.antlr.v4.runtime.tree.ParseTreeWalker.walk(ParseTreeWalker.java:52)
at org.antlr.v4.runtime.tree.ParseTreeWalker.walk(ParseTreeWalker.java:52)
at org.antlr.v4.runtime.tree.ParseTreeWalker.walk(ParseTreeWalker.java:52)
at org.snomed.authoringtemplate.service.LogicalTemplateParserService.doParseTemplate(LogicalTemplateParserService.java:53)
at org.snomed.authoringtemplate.service.LogicalTemplateParserService.parseTemplate(LogicalTemplateParserService.java:31)

Something like this
322236009 |Paracetamol 500mg tablet| : 209999999104 |Has trade name| = "PANADOL"

Also leads to a nullpointer

java.lang.NullPointerException
at org.snomed.authoringtemplate.service.LogicalTemplateParserService$ExpressionTemplateListener.enterAttribute(LogicalTemplateParserService.java:107)
at org.snomed.authoringtemplate.service.generatedlogicalparser.ExpressionTemplateParser$AttributeContext.enterRule(ExpressionTemplateParser.java:1056)
at org.antlr.v4.runtime.tree.ParseTreeWalker.enterRule(ParseTreeWalker.java:66)
at org.antlr.v4.runtime.tree.ParseTreeWalker.walk(ParseTreeWalker.java:49)
at org.antlr.v4.runtime.tree.ParseTreeWalker.walk(ParseTreeWalker.java:52)
at org.antlr.v4.runtime.tree.ParseTreeWalker.walk(ParseTreeWalker.java:52)
at org.antlr.v4.runtime.tree.ParseTreeWalker.walk(ParseTreeWalker.java:52)
at org.antlr.v4.runtime.tree.ParseTreeWalker.walk(ParseTreeWalker.java:52)
at org.snomed.authoringtemplate.service.LogicalTemplateParserService.doParseTemplate(LogicalTemplateParserService.java:53)
at org.snomed.authoringtemplate.service.LogicalTemplateParserService.parseTemplate(LogicalTemplateParserService.java:31)

I use the Version 1.2.1 from your maven repo, 1.2.2 isnt already there but i also dont see major changes there.... The examples above working with the js variant at https://www.ihtsdo.org/SCT-etl.html. Am i missing something?