Good morning
When you activate a piston with redstone 2 block above it that it is updated by placing a block stick to the piston it activates. then when you destroy the block stick more all the redstone above update the piston it remains activated without any source of redstone.
This report is invalid as your game was modified when experiencing this issue. In the attachments you've provided, I can see that you're using modifications and the bug tracker only handles reports that can be reproduced in a vanilla environment. If the problem persists without the use of mods, feel free to create a new report. Additionally, please see the Bug Tracker Guidelines for the minimum standards when submitting a ticket.