Purple text in reports

Hi all,

A few days ago some texts in our reports became purple. See the (masked) screenshot below. I've marked it with red arrows. As you can see I have 2 purple texts in this reports and many reports have this.

I can't find a way to edit the report in Desktop to change the color in case of the 'goal'. And in case of the second purple text it is a text area. I was able to edit this in Desktop, but for me this is a prove of that it is caused by a recent update.

So my question is; are there more people who have this? And what is the cause and most of all; how can I solve this?