No IPR update for Light object on a sky

If you start the IPR and either rotate the sky or change the U/V offsets in the material tag, you have to restart the IPR to get an updated rendering.

Daily Beta from Dec, 21 plus R19 on Win 10.
sphere IPR v2a.c4d (298 KB)

Strange, everything works fine & lively here (w7, r18.0.41).

I checked it here, R18 (and still Win10), it only works after restarting the IR after a change.

I have the same issues when rotating the Sky object. Have to restart IR to get an update. Running Windows 10 Pro, C4D R18.

I can confirm the problem. The Sky rotates in the viewport and in the IPR but the lighting does not update unless you restart the IPR itself.

Fixed, thx a lot!