it works fine with HtoA 2.2.2 if I save the file in previous version of houdini (16.0.671) and open the file in houdini 16.5.323 but it doesn't work if I create a scene in current version. it is strange.
It won't really work. see attachment here. I have a new machine and nevertheless there is same error.
Let's see an Arnold log for the render
00:00:11 110MB ERROR | [texturesys] Invalid image file "/Users/pepe/Downloads/uffizi_probe.hdr" 00:00:11 110MB WARNING | render terminating early: received abort signal
00:00:00 31MB | [ass] loading /tmp/houdini_temp/htoa_pepe/2283_ee598ea1-2d52-4252-b144-13ece541237f.ass ... 00:00:00 31MB | loading plugins from /Users/pepe/htoa/htoa-2.2.2_ra19eea7_houdini-16.5.323/htoa-2.2.2_ra19eea7_houdini-16.5.323/arnold/plugins ... 00:00:00 31MB | loading plugins from /Users/pepe/htoa/htoa-2.2.2_ra19eea7_houdini-16.5.323/htoa-2.2.2_ra19eea7_houdini-16.5.323/arnold/drivers ... 00:00:00 41MB | loaded 2 plugins from 2 lib(s) in 0:00.01 00:00:00 41MB | [ass] read 1688 bytes, 7 nodes in 0:00.01 00:00:00 41MB | [hick] rendering progressive pass at AA = -3 00:00:00 42MB WARNING | rendering with watermarks because the skip_license_check option was enabled 00:00:11 110MB ERROR | [texturesys] Invalid image file "/Users/pepe/Downloads/uffizi_probe.hdr" 00:00:11 110MB ERROR | [texturesys] Invalid image file "/Users/pepe/Downloads/uffizi_probe.hdr" 00:00:11 110MB ERROR | [texturesys] Invalid image file "/Users/pepe/Downloads/uffizi_probe.hdr" 00:00:11 110MB ERROR | [texturesys] Invalid image file "/Users/pepe/Downloads/uffizi_probe.hdr" 00:00:11 110MB ERROR | [texturesys] Invalid image file "/Users/pepe/Downloads/uffizi_probe.hdr" 00:00:11 110MB WARNING | render terminating early: received abort signal
So you have Auto-generate TX Textures enabled.
Enable Auto-tile
Enable Auto-generate TX Textures.
There's no good reason to disable it.
If you really must, then you have to enable Auto tile.