Collapsible Text Box Bugs

I’m having trouble with
the Collapsible text boxes working incorrectly. Previously it would show all the text in the collapsible text area, and now it is only showing some of the writing in the text box on some of my page elements, in boxes that previously existed and were working. For other page elements it is no longer expanding at all when I try to create a new collapsible text box.

For example on the linked page, the amount of text actually in the collapsible text box for Histograms is about 520 characters. It is only showing 293.

Working in
I am working in Wix Editor.

Site link
You can see an example of this not showing the full content on this page under Histograms: https://www.forgetthepaint.com/ftp-ukko

And you can see an example of the element not expanding at all and just remaining open the entire time under “Financing & Terms Explained” here: https://www.forgetthepaint.com/sale-animals

What I’m trying to do
I just want the collapsible text boxes to show the full list of text on the existing ones, and for the ones I have been trying to create I would like them to actually expand! Does anyone have a fix for this, or a suggestion for an alternate element that would allow me to display several years worth of data without taking up a huge amount of space on these animals pages?

What I’ve tried so far
I have tried making sure that it is set to expand, making sure it is disconnected from CMS (which is easy to do, I do not have CMS set up on my site at all), tried deleting and re-adding the box.

This is definitely odd and not expected - I’ve not encountered this myself, so don’t have any immediate recommendations beyond what you’ve already tried.

I would suggest opening a ticket/bug report for this if you haven’t already, following the steps outlined in this topic.