Keyboard shortcuts (hot keys) in Excel no longer working

Hello. I’m running an RPA to take data from one Excel file and splitting out to individual files by client with end result being 30-40 separate excel docs. I use copy/paste and append ranges, which works fine. I added excel hotkeys to format column width & height, freezing the top row, and save each file (Cntl+A, Alt+H, Alt+O, Alt+I, Cntl+Home, Alt+W, Alt+F, Alt+R, Cntl+S). However none of the short keys work now except save. Something is wrong with indicating the target on the last keyboard shortcut step. Any suggestions?