Character limit on RDP Clipboard

When attempting to use the new clipboard API, copying and pasting from the clipboard in the remote session appears to have a character limit as apposed to the previous version. To test this I created a text document and continuously filled the file until I got to the point in which the clip board functionality ceased. 

Based on my testing, the clipboard would not copy text after the selection content exceeds around 262,000 characters, I removed /r & /n characters just to eliminate the possibility of the bug being related to new lines specifically and I can confirm that this issue occurs even if a single line exceeds the aforementioned value.