Write some content in the RTE having spaces in the sentence.

Do the copy operation from the RTE toolbar.

Perform the paste operation using Paste Plain Text.

After pasting the content using the Paste Plain Text, it removes the space character form the sentence.

Hi AlagappanAnnamalai,

I can reproduce this issue, I have reported it to the development team, once issue is fix, I will keep you posted.

Regards,

Ken