Issue with iray

Hi,
I've got this issue with iray DAZStudio.exe caused ACCESS_VIOLATION in module "C:\Program Files\DAZ 3D\DAZStudio4\libs\iray\libiray.dll" at 0033:000000003F61BBDB, mi_plugin_factory()+2658315 byte(s)
Studio 4.22 / GTX 1080 / I7 8700k
Any idea to fix it ?
Regards
Comments
For more details, see log atached
Out Of Touch hair, or hair using Out of Touch's hair shader set? This is a known issue if there is a map assigned to Transmitted Colour - select the hair and check the Editor tab of the Surfaces pane.
Thanks for your help, I've deleted out of touch's hair but the problem remains, I've noticed I don't have this issue with studio 4.21 on another PC, don't know if it's due to PC configuration or studio's version 4.22 ?
DAZStudio.exe caused ACCESS_VIOLATION in module "C:\Program Files\DAZ 3D\DAZStudio4\libs\iray\libiray.dll" at 0033:000000006312BBDB, mi_plugin_factory()+2658315 byte(s)
Regards