Thanks for checking. I did have an issue with SJ and also Mälardalstrafik where search results did not show up for some sesrches. I double checked SJ now, and indeed, it works. I checked Mälardalstrafik again, and it does not work still (only normal searches work, not "Buy movingo" searches). I thought it was an overall issue with train apps, but then it appears to just be Mälardalstrafik then.