Hello. I just updated my iMac to Sonoma (14.1.2), and now InDesign (19.0.1) has some new performance bugs.

When using the "Type tool" and dragging the cursor over the text I want to select, the text flashes, and the page briefly goes completely white. When I stop dragging, the text appears normal, but because the page is a whiteout while dragging the cursor over the text, I have no idea what text I'm selecting or where my cursor is going.

A similar thing happens when I want to select a few objects using the "Selection tool" to move or copy them. The disappearing text, objects, and flashing happen in both Normal view and Preview.

Has anyone else had this experience?

Addendum: BTW, this problem does not happen on my MacBook Pro, which has an Intel chip and is about three years old. However, my iMac is about a year old and has an M1 chip. Could this be the issue?