The page refreshes everytime I try to change the name of a block in a toolchain

I am trying to make a new toolchain. When I want to change the name of the block the small box for adjusting the inputs and outputs of block refreshes. It closes and opens again in a split second. It happens only when changing the name of the block but not when changing the inputs and outputs name and it happens by writing or deleting each letter. Very annoying! I would really appreciate if you could give a temporary solution to me if it will take time to fix this issue. Please let me know if you need any information.