Cursor keeps on switching from normal to loading

This option is not available in the latest version (Microsoft Word for Microsoft 365 Version 2506 Build 16.0.18925.20076) of Word. It seems to be related to having an image in the header for me because if i delete the image it stops cursor flickering issue. This is a new problem though since i have been using the exact same word template (with same header image) for years without this problem. I have tried re-inserting image and changing image, and re-sizing image. I also tried changed the word-wrap settings and positioning settings. nothing solves it except deleting the image from the header completely.