if you use TextBox then also same thing happen? Are you using PowerApps in browser? if yes then can you clean the cache and try again or use different browser? Sometimes this kind of error temporary so you need to try out. Please let me know if you need any other inputs.
@@AniruddhaBiswasChannel Thank you for the reply. What i did to get the json for FLOW - I copied the format for the video and now is working great. Great video!
I've had the same issue, I think it was due to the huge quantity of characters. A workaround that has worked for me was to create another column in a Sharepoint list, formatting it as text with multiple lines, and in PowerApps created a button to patch the variable ImageColToJSON to the column.
