I'm a Librarian and I created a flow for one of our teams at the library that takes responses to a Form that’s on our website, puts it into a List on the team’s SharePoint, then creates a task in their Planner based on the submission and also sends them an email. Here’s a picture of the flow, if that makes things clearer.

I noticed a few failed runs and saw that they were failing at the Create Item stage because the response to one of the questions on the form exceeded the allowed character length of the corresponding field in the List. (There are two questions on the Form that allow patrons to choose as many checkboxes as they want.) I changed the column settings for the appropriate columns in the List (switching from Single Line of Text to Multiple Lines of Text) and then removed and readded them to the Create Item portion of the flow.
Since doing that however, responses to those two questions now show up in the Planner tasks as HTML code. Looking at any individual flow, I can see that the output for those fields from the Get Response Details stage look normal:
["LGBTQIA+","Literary fiction","Mysteries","Romance","Speculative fiction"]
And the input for the Create Item stage looks the same. But the output for the Create Item stage is when the code shows up:
<div class="ExternalClass355CBF38382443DD88F929801D9D18DF">["LGBTQIA+","Literary fiction","Mysteries","Romance","Speculative fiction"]</div>
Any thoughts on where the problem might be here? Ideally I would like to not have to limit the number of genres/subjects patrons are allowed to select on those two questions. I would also like to not have to delete the current List or Flow if possible.
Thanks for any advice anyone can offer!