I had this issue with my own imported characters. It turned out that it was doing it because the unarmed 1 and uarmed 2, and maybe the stoodfidget1 thru 4 entries in the FPE were blank. It may be the same for you, try putting your idle animation in under the following lines:
csi_relaxed1 =
csi_relaxed2 =
csi_unarmed1 =
csi_unarmed2 =
csi_stoodfidget1 =
csi_stoodfidget2 =
csi_stoodfidget3 =
csi_stoodfidget4 =
I hope it's the same fix for you as it was for me.
i7, NV960 4GB, 16GB memory, 2x 4TB Hybrid, Win10.
i5 , AMD 6770 1GB, 8GB memory, 512GB Generic SATAIII + 2TB Seagate Baracuda SATAIII, Win7.
i3, Radeon integrated graphics, 4GB memory, 512gB Generic SATAII, Win8.1.
Q6600, Intel integrated graphics, 2GB memory, 180GB Generic SATAII, WinXP.
