Hey there! I also use the desktop version of this app, as well as other platforms. I've encountered this issue over the past few days as well. What worked for me was closing and reopening the app. This temporarily resolved the problem until it happened again. I’ve noticed this issue tends to occur when I have large amounts of text in an entry or if I leave the app open for extended periods. While this isn't a permanent solution, it has helped temporarily fix the issue when it arises.
I do hope this get fixed, as I tend to reword things a lot ;(