Markers don't behave consistently with clicks

Hi- I have gone from being super excited to have found markers, thinking they would be a time saver, to very much regretting using these time sucking little mysteries. They seem to be a little underdeveloped or have a mind of their own or something! I have figured out a lot of my issues, but one remains- It seems like you have to click exactly right in the middle of the fairly large marker area to get it to open the label and audio. And even then you need another click. I have a series of 7 markers, and number 6 and 7 are the worst for some reason- the learner clicks through fairly quickly and label appears with a short typing sound effect audio. By the time you get to 6 or 7, the audio will not play. But they are still finicky even if I go backwards and start with 7 and 6. It's just so inconsistent I can't even recreate the same behaviors every time, but sometimes it takes 2 or 3 clicks to get it to open label and/ or play the sound. Should I abandon markers?