Problem as title.

Using Chrome get to paste contents of clipboard but submit gives 'you've exceeded the character limit of 30,000 for this comment' irrelevant of actual number of characters.

Edge just pastes txt 'undefined' irrelevant of actual contents of clipboard

All other areas of Zoho desk work fine with clipboard paste (i.e. new ticket description) it's just comments on existing tickets that seem to have problem.

Was all working fine until early yesterday (14th)

Client is Windows 10 Pro 1803 (build 17134.345). Have restarted etc. same issues. Tried from another machine and get same problem. Can paste fine into other tabs on same browsers - just the zoho desk ticket comments that seems to have a problem