@JulesV Try this, I only inserted this lines to make sure the RangeSlider.getValue() is an object
if (typeof RangeSlider.getValue() != "object")
RangeSlider.setValue({"min": 0.0, "max": 1.0});
HiseSnippet 1553.3ocsWstaaaCElJIZn1acXEX+Z+RyCXPtIww14lc5xpy01rkjZDm0UfhhBZIJItHSZHQ6jf17rr8Ht2fsCIkrnyktffUiDmPdt8ctQdX2DtGIMkmfrJe5kCIHquxt2kLQzNQXJCcvtHqu19DLKj3zKl5SRPae4PbZJwGYYM6Kj7XUZNj5ye+7swwXlGoXKD50bpG4P5.pnX2tc9UZb79XexozAFbuRmC73rc3w7Q.dl0tNZH16LbH4XrjsYrQuDmFgrdpcyf9dMCVe4VMZ2n85qztQiUa0ek5M87Ws8xKu1x9AMagWqEHzWrmOUvS5IvBRJxZts49W1KheNSafWSSo8iIxEMP8.Kq2dedruzEk6h1IhF62MOPkh.szsHrMqNr8s1GQ8oS1uH78MJBNERXF.slYZ3M6TvqgI7pa.uaARVFPZNMjdhcOuD5PQAEId9R6CXBRR.FxSlPQyKZlROxdGNvASTa.9Lx9IvhIR3tV85K3.eU8YkgOKsToS153WrmSuCOX28Nwo6VGu2gkV798oLjqSENphqtm3roSvHlmfxYtgUK+gxkFiSbvv1hHZZsPh3PtGNda9Hlepqz9kzrLfxLXxsBrthjphF9hooguPQKSzwFDeMNdDwMWvDUE+lJErnzDll6M.A7aa9tkTb8T2w0fMWD90vr2BO3Kx3obovZoDgtN2s.c8C0aUopTQg0BfljSj9Kw+Dhm.TTLw8sP7G9Qpa42K+tkVA9mr3god0+Is14TQzVwCivFVhJHCxs0B5PfOVfqEwGSRbdtSiZ0c1vodsVeRjHCEJvH82E0qtNhjgCwT4.A4BwjDT5nf.pJGUKcT+TQBkE5JpQAKcwqBbqrwFUpNeS.h0hIrPQTtbikYqsROEzEH7PbRJApQ0YhpNymq24cprfSE3OlbfunfiBLp0TQnX.eTJYWnQDBGlVaC.KIjgwxlAI7lWqHvLUtYNXZud5rqeB97shogLhuTwtRNf3GnHOn2Kg3uMWH3CjZ8JnlwnY4nc11ragLF3eRGycWS+PZTt6dgqWzroiBG5UOyjdQjLmGv0CUJgF3ngeMuXp2YDemO9QCdpVtD3U4IbPbMTVZBP+cpuHxspySyDRlw0.DT9M0NnuRF.yKJyyNBKhpg6ml0IC1ppyOM0tPuqZ2m6nBaPUfJDYXnap1M07pLpRw4VR4Etf9VPB1Ebz0jRcQhSIYrqRHWmckZT8aYmho8FsE8UY5qljbfpT3NHgaVATVEjLXpphzWmCFI+z9PYY6fgbFrvshAOxJgxFqkE3ckpFNRPPYD2rivA1tFWGIS86fii6C2i6lW7B7ohXvkT7.SvXTy578P3i2+OfSajQvqoWMSePEekmSAmAoxGaHO45J8cSTVLfsIsINblgRj9bBO10K2gWP2jqZi.ho7XRsgIxvmHQ1pqolEJuGQL8g.JiLw+uMD.Zz.gGyEjWwbUnn7UkctNoffakVlthII2JY4PVIeJAcYiFzmjXFCjLBCRL8zI128zIlCO4oCOFLxYGvnhWMjvtqQpPYwT4jLYnBXUnli4w4ywfYjXD0WtiQjDoPMx5Gr+kdu537hhUaNUYwZKCKuBg9sC1E5QysBXP.DCIIBpz+r1kLFlVUO8TI6cIomI3CU7lkkgwiueX5hIS014zNWNYweg6bt7LqhYdochHzvHioi+4NEWOKGWSNiaylsZ2BUbIhbL8UZ1dk1qsdy1qpHHYUML1FaLHEAtcAB9yNPIH+77BQvS+N6cjGIltfyKUmd+iN6Bm2FB29hRwigaJ6lPfJXv0mAcyAKgQZ49ihwhomyU9ZfLBP40TCWJGfjkREWZ9Zg+2F989BwmX2kJ7htcLNysfQnN4yAFydxvis2KH.Nfq.fyYu+a9779.j9r5P3FkDJTZXe7nA8fBIOBXcFTCKaugjsTT055x0xHPOByWs3efOYDaHWakQrQNQnnyKg+dOc6q7QIORsCfIl5AbkrORt1oQdKaQbd.7Fo264MsptgfMenBt7CUvUdnBt5CUv0dnBt9CUvV+2BJeB6VifwQ0sMHzQc2ScPpk0dLLTAppVQ+KDOh3t.