In the zoom percentage box, clicking the increment button works for a few clicks then does not increment the zoom percentage any further.
1 - click repeatedly on the zoom percentage increment button, the zoom percentage will increase with the first few clicks (usually about 3) and then stop increasing
2 - type a new zoom value into the zoom percentage box or press the zoom in button the zoom percentage increases by the expected amount
3 - click repeatedly on the zoom percentage increment button, the zoom percentage will increase with the first few clicks (usually about 3) and then stop increasing
The zoom decrement button seems to work fine in all circumstances.
I am using 2024.8.5.155 on an Intel Mac running Sonoma 14.5
(I found that typing the percentage symbol gives very strange behaviour in this forum post, although it works fine in the heading)