Action links not working after many are added


I am having an issue where if I create too many action links I am only able to select the upper ones.

For example, I have a To-Do list and the number of items on the list changes how many items I can click on.

Normally with 15 items (or less) on the list works fine, but above that, the number of clickable items varies between 14 and 17 (there seems to be no pattern that I can decipher)

I have attached a table that shows the number of clickable items Vs number of items on the list.

I have also attached a dumbed down theme file to allow testing.

Hopefully it's just a small code line change

I have a pixel 5, but I assume that's not part of the problem.


Has anyone got any ideas?

bump, please help, I am sure it is simple