First of all, thank you very much for your kind support in this forum. Yesterday I switched off the two buttons C and V om PinballX and then played several tables. The flippers behaved as they should. So it may be that at least this problem has been solved. But the slingshot bug in Rockmakers still exists: every third or fourth ball, the slingshots have no power and remain passive. Very, very strange. I don't think the key mapping has anything to do with it and it's only this one table that has this problem. I would leave it alone for the time being. If I find out the cause, I will get back to you.