macOS tahoe26.1 attach window on whatsapp and outlook only sidebar and blank on right and can not resize

I installed tahoe 26.1. onto my macbook air. I noticed that applications like whatsapp, outlook mail, chatgpt or any other application that you can attach files a problem appeared. The problem is when I click to attach the window that appears on the shows side bahar like in Finder but on the right or the side bar there is no items and the sidebar extends across the screen, and you cannot resize it width wise from left right or right to left. But you can resize it from top to bottom and bottom to top. I found out how to reset in terminal "defaults delete com.apple.finder" "killall Finder" and after reset, when I click attach only window comes with items but this time no sidebar. And when I click show sidebar, it shows side bahar and I can resize. But when I close a the attach window, and reopen attach window, the problem of only showing sidebar and nothing on the right and blank all the way across to the end of the screen starts again