resize

when I open a board for years it was always the same size. now it is smaller. I will include a screenshot. 

If you hover your mouse at the upper right corner of the board (near the ) you should see an icon shaped like two arrows you can use to drag your board larger or smaller. That setting should "stick" for all boards on the site, where possible. Does that work?

Got the same issue this morning
Changed back to normal after few hours...

 yes, it did.  If it changes again on its own I will inform you.