Error running Stan model with rstan 2.21 in Windows

That’s strange. Updating to the newer version seems to have solved this problem - I can see progress in the viewer again. Not sure what went wrong but I’m happy it’s working again. Thanks for all the help!

A new version of RStudio or a new version of rstan changed the progress thing?

RStudio - I upgraded to 1.3.1056 and that made the problem go away (hopefully permanently).

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