This diary generation message occurs while processing a BOXFIT or BOXGROW token, if it has re-sized the box more times than the value of the maximum boxfit iterations generation option.
This message is meant to prevent an infinite loop whereby a box would be increased by a certain amount in one direction and by the opposite amount in the opposite direction (ie. each iteration would come back to the same status as before).
This message also serves to prevent the box from reaching too large a size as compared to the size of the page (which would probably cause a QuarkXPress or InDesign crash).
Topic 176375, last updated on 19-May-2023