When I want to paste a pin the cursor always jumps to the start of the line

I’m working with two windows, where on the left I’m taking notes and on the right I’m reading a PDF. After I have created a pin in the PDF and want to paste it into my document, the cursor behaves incorrectly: I click back into my document at the end of the line where I want to paste the pin but the cursor jumps to the start of the line. I have to click a second and a third time before the cursor stays at the end of the line. Only then I can paste the pin and everything seems to work ok again.

System: Windows 10, RemNote Desktop 1.4.7