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Lamps do not update in Render Preview Mode (Cycles)
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Description

System Information
Operating system: Windows-8.1-6.3.9600 64 Bits
Graphics card: GeForce GTX 970/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 417.22

Blender Version
Broken: version: 2.80 (sub 66), branch: master, commit date: 2019-05-16 12:17, hash: rBe60890075b37
Worked: 2.80 (sub 55), branch: blender2.7, commit date: 2019-04-09 18:12, hash: rB009dbc2bc9fb

Short description of error
Hi Blender Team, lots of great changes in these new builds, but I noticed that when you translate lamps in the Render Preview Mode, they do not update (you have to exit and then re-enter the mode). Thanks for looking into this.

Exact steps for others to reproduce the error
Open default file. Switch to Cycles and Rendered Preview mode. Move the point lamp. Light will not update.

Details

Type
Bug

Event Timeline

Just noticed this applies to ALL lamp settings in Cycles (power, size, strength, color, etc). Nothing updates in real time when in rendered preview mode.