BEAUti says "The BEAST XML is incomplete"

[bredelings]

I tried to load a FASTA file with some amino acid data. I choose LG+Gamma+I for the substitution model and approved the default priors. This is for the latest release on recent Linux.

The message is:

The BEAST XML is incomplete because:
Substitution model or site model generation has failed:
Cannot involved "dr.app.beauti.options.Parameter.getDimensionWeight()" because the return value of "dr.app.beauti.options.Parameter().getParent()" is null