altair.static.basePath not recognized in STS4

[SledgeHammer01]

I'm using STS4 and altair.static.basePath is not recognized if I open the application.properties file. It gets a yellow squiggle and a Warning icon on the file. Normally, I can add the property to my additional-spring-configuration-metadata file and it fixes it, but there seems to be something different about this particular property.

[oliemansm]

Just tried it with 7.1.0-SNAPSHOT where it's working for me.