there are a few things I can think that you can try.
slow the print down. Iāve noticed that with tpu if you print to fast then it can result in the material being pulled inward slightly with messes up the inside dimensions.
try printed the remote larger then 100% like 101% or 102% your printer might just have different tolerances than mine.
try setting the seam to random. the case does fit tight but Iāve never had one of my cases even the prototype ones just pop in one area like that. the seam is a weak point but if you set it to random then you wont have all that stress on one area.
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