Problem with Mandelbulb 3d

[Kurunir]

Good day for everybody.
I hav a problem with mandelbulb 3d
I have some fractal and when i save it in 2000 px the picture looks right. But when i save it in 3000 px and higher the picture change it form to a roundish objekt. What can i do to address an issue.
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I attach two photos - first is the original fractal saved in 200px ; and sekond is the same fractal saved in 3000px and preview in 3d navi.
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and formula/

Mandelbulb3Dv17{
V....ET....x/...w.....6...kTlaQiGkOC.nM0QJR9Mc3EjVAnmJODU.YeRtNx.WjzzKwfbdlTzb.k
................................VGPnHAGq7z1........Y./..................y.2.....
.....0.........U...0/....6Uk....75....E.KUKeZl9qOJ7jZKtD/.........2b0dkpXm1....Q
./UaNadD12..2..........wz..................................u1....y1...sD...../..
.w1...sDXQ3M8FpALxvjpnNW81gTzYTgR/gperrjgplqA0FQsx1.fqRIVsmSzI31F88QnQrD3hikDSMc
/yXLrgn4B.tOzW73Ra5f.Irj.....yXf/.............kD.2....sD..kz0...................
.............ckpXm1...sD....z.MRM9.6qVh..P5q0.qRM9..sVh.UW5q0.ISM9......w....k1.
................E.kz.s7kB1.R.Y5......24...kO....C0....1...E4....szzzzL2...k5MNK1
..kTzl6izvNFG34kK23jBj3ca16.mc..U1Cs.Q6Fbf24LNvD5Got8VlJqy9............28.kFrA0.
Ry8pJs/mZzPTzMwlGfEnz.........../2X0.wzzz1.7H0/bvOonz4D8YqFpt/zD..........E.lc..
zzzz.otfILV56Lzj8NH/CQa3vz9..........2U.8.kzzzD.YA72QifFDzvKilEhAIrpz...........
/6U0.wzzz1E3XhzrBmG..x1osMgdlHzj.............2CcN/UvNP6.eeWCNq0.yRii.EJJUk1f..XR
S1.mx3CcN/UvNP6.QsLsUa3.ibhV..bTV1OK.sSq40.ly3CcN/UvNP6.MwLsUa3.ibhV.kqTV1OK.sSq
40.kz3CcN/UvNP6...EsUa3.eeWCNq0.IJ36wk8.szLsUa3.................................
E6...E....E.....I....c....kHXFLMcJ4NmxaP7NoI..............................U/4MU/
4M........UNaNaNaNaxz........E.EOaNaNaNaNzfaNaNaNaNqz0........0E.......U6/2.....
..U7./......../E........g.A........../..........................................
.....................2.....3....2....kIMh74NVF1FX/..............................
..............................zD................................................
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.....................................wzzzzD.....................................
........................................U.2.....................................
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..........................................E.....I.........kLAxqNoE2.............
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........................................................}

[Jesse]

Hello,
unfortunately there is no solution for this problem, the Log4D formula is a more experimental one that does not produce accurate distance estimates.
Technically spoken: In the higher resolution image the distance is generated from gradients of more nearby points and the formula seems to be critical to this change.  This would occur also if you zoom into the object.

[DarkBeam]

Well said doctor Jesse!