I'm really confused. None of those who help me study the program, there are no such tricks.
In general, this was the second time. It seems that 3D Koat, when the computer's power is on or off, resets its settings by default.
Please, here is the configuration of my computer:
System: Win 10 Home Edition x64 (on SSD HyperX volume 265 gb)
GPU: gtx 1080 ti
CPU: Intel i7 6800k
Memory: Corsair Vengeance LPX [CMK16GX4M2A2133C13] 8x4 Gb
Motherboard: GIGABYTE GA-X99-UD4, LGA 2011-v3
Data store: WD Red WD20EFRX, 2Тб, HDD, SATA III, 3.5"
And, I use Symbolic link becouse document folder of 3d coat very big, and i dont need it on SSD , so my Documet folder for 3d Coat at HDD.
Please note: I see such problems only in the 3D Coat. Neither in Blender, nor in Krita, nor in Gimp, nor in the Word, Excel, I have never encountered such problems even if the power to the computer was lost when the programs were turned on.