Can't save Beauti files with HPM in it and unable to restore settings through XML files.

[Serebix]

Hi all,
I saw a closed thread about loading old settings in Beauti (#689).
So I assumed I always tried things wrong when I wanted my settings back in Beauti from old XML files to change just some minor priors.
So I set up a new test run, set some parameters and linked a few priors into a HPM.
Upon saving (before even trying to load this file back in) I received the following error message:

Unable to save file: java.io.NotSerializableExecption: dr.app.beauti.components.hpm.HierarchicalPhylogeneticModel

So what is the proper way to save and restore old (complicated) set-ups with priors, HPM and other settings?

[Serebix]

Update to the loading issue:
After setting all parameters (without a HPM) and saving to a file (with or without the extension *.beauti) the current state can't be reloaded when trying to opening it again late on.

Upon loading it via "Load" I get the error message "No data loaded - select "Import data..."" in the lower left corner.
When trying to load this beauti-save with import data it gives me an expected error (unrecognized format for imported file.).