Sparky Page Builder not saving changes

Sparky Page Builder not saving changes

Joomla 4.3.1, Sparky Plugin 1.2.0 enabled

Steps to reproduce:
Sparky Page Builder plugin
Create an Article
Give it a title, save the article
Add a Heading to a row
Go to settings and make a change (for example change the tag from H2 to H5)
Click Save

Result:
The User is kicked out to the article editor and returned to the list of articles
The article is checked out
If you check in the article and open it again, the heading is still H2, no changes have been saved

Expected:
Heading changes should be saved
User should not get kicked out of article editor
The new article

I've tried other things like adding a button, changing button text, and trying to save with the same result.
Adding an image doesn't work either -- when you go to Settings and try to use Source -> Select nothing happens
It seems like the Setting modal or associated javascript is broken
I noticed on the JED the latest Page Builder version was released January 2022
Is the product still being develped/supported?

Thank you for your time

Hello,

You forgot to mention the Joomla version. The support for the plugin for Joomla 3 has been discontinued. The support for Joomla 4 is active.

Anyway, I think the problem is in your Joomla installation, not in the Sparky Page Builder. Try enabling another editor (try Joomla default editor TinyMCE) and then try to add content to check if it's possible.

Regards,
Milos

Sorry, I now see you are using Joomla 4.3.1. So, try with the default Joomla editor to add any content.

Regards,
Milos