Hello,
1 / I place a vertical picture (P1) 2322x4128 on V1 which I crop to 250x444 with S&P
2 / I then place a horizontal picture (P2) 2816x1880 which I crop to 700x467 with S&P
3 / I go back to P1 and I change the value of the width from 250 to 500 in the Dimension W box - Nothing happens in the reader, the frame is not updated.
4 / I do the same operation with P2, I change the value from 700 to 800 in the W box and there the frame is updated in the reader.
See demo below