Regrssion Learner App 2021a not working - start session grayed out

Just upgraded to 2021a and my regression learner app isn't working. No matter what kind of input I choose for the Data Set Variable, the Start Session remains grayed out. And I'm unable to specify a response variable. Tried various arrays and tables. Any suggestions?

[Shraddha Jain]

Hi Anthony, it would be easier for us to look into this issue if you could provide us with a screenshot of the error you are experiencing.

[Anthony Diaco]

There is no error message. Like I said, the Start Session button just remains grayed out.

I've further explored the problem. It seems it works the FIRST time I open the app and import the data. If I try to import a different data set, it doesn't work. If I close the app, reopen it, and import a data set, it still doesn't work. I need to restart MATLAB to get it to work again.

Definitely a bug of some sort. Let me know if you need any other information.

[Tong Hui]

I have the same issue, the APP itself is not responding and I have to force quit, I also installed Matlab 2021a

[Nicolas Pipard]

I have the same issue with Matlab 2021a. It has worked before, but now does not want to work with any variable I try.

Answer 1

[Drew]

See https://www.mathworks.com/support/bugreports/details/2451532

This was fixed in R2021a update 2.