Random hanging of export_fig

I have a script that calls export_fig dozens of time and export_fig seems to randomly hang matlab (spinning ball of death on Mac). The current calling parameters are export_fig(filename,'-png','-pdf','-r512','-transparent'), but other parameters also randomly cause Matlab to hang.

Others I work with see a similar behavior. I am currently on an Intel Mac and have seen this on Matlab 2023B and 2024A

Any ideas?
Thanks,
Mitch