redstone wont connect to sticky piston once but somehow the other one activates

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We're tracking this issue in MC-108, so this ticket is being resolved and linked as a duplicate.

That ticket has already been resolved as working as intended, which means this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.

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Redstone wire doesn't redirect to connect to pistons. You can use a target block for that purpose.