P: Updating process in LR4 unexpectedly zeroes out exposure brush value.

I think a reasonable workaround for the time being is updating the target images to PV2012 (push that "!" button) just before syncing or pasting.

> you're expecting local adjustments on the target photo to update themselves to the new process too

Actually I am not looking for the adjustments to be "right" aftet sync applies PV2012, just "still there".

The typical scenario is a photo which has been worked on some time ago, with lots of dodging and burning etc. Client wants a new set of prints so we look at the session photos and decide to sync the whole lot to the new 2012 engine. We expect to have to go in and tweak things, but setting adjustment brush values to zero and making all the dodging and burning disappear is a little strange (or buggy).

Thanks for the interest in this. Let's see whether you can get an official response.

I can see what's the problem.

You're trying to sync some global adjustments from a PV2012 image to a PV2010 one. In the process, you're expecting local adjustments on the target photo to update themselves to the new process too, even though you're not syncing them.

But, I am not sure Sync or Copy/Paste are supposed to update any adjustment to a newer process. Technically, they're doing what they are supposed to do: copying adjustment values from one image to another.

I think I'll report it as bug and see what's the official response.

Possible. I will check it out and see.

When trying to reproduce the steps of Stephen Page, did you by any chance convert the first image from PV2010 to PV2012 and back after drawing the brush blob? In this case, the PV2012-exposure-value of the brush is already set by the conversion and is preserved when the PV is synced to PV2012. Also, all my examples work correctly then.

Perhaps you can try the following steps. This example is using two photos (like the example of Stephen Page), however it seems to be reproducable without any deletion of preferences, re-import, etc. You can use two existing photos in the catalog.

1. Reset photo #1 to Adobe defaults
2. Reset photo #2 to Adobe defaults (both should be PV 2012 now)
3. Change photo #1 to PV2010 in calibration panel
4. On photo #1, draw a brush "blob" with exposure set to maximum; close brush panel
5. Select both photos, activate photo #2 and sync only the PV to photo #1

The brush on photo #1 disappears (i.e. it is still there, but with exposure set to zero).

You are correct Stephan, I wrote it wrong two posts up.

LRUser24 Copy/Paste Settings does fail as I indicated two posts back.

Now, I just have to figure out how to get your scenario to fail.

We will need an engineer to chime in on LRUser24's query about bug or as-designed.

> The OP is using two files and the file being Synced from is PV 2010

No, the file I am syncing FROM is PV2012. The file I am syncing TO is PV2010 with a brush on it.

I confirm LRuser24's finding that the same problem occurs with copy/paste the PV setting.

The OP is using two files and the file being Synced from is PV 2010.

Your steps are different than the OP's.

They are not using Copy and Paste but Sync.

When I follow your steps, I get the same result as you - when I follow their's I get expected results.

Ok, so here is my one-photo-version again, but this time exactly on-topic with the OPs problem (I hope):

1. Reset a photo to Adobe defaults
2. Copy settings - select only the process version (which is PV2012 now)
3. Set PV to 2010
4. Brush: Paint a blob with all settings on maximum
5. Paste settings (or sync the PV from a second PV2012-photo)

...and the blob disappears (only saturation and sharpness values "survive").

I have tried three separate Win 7 64 boxes now (and one Mac). They all behave as the OP expects-but not as the OP reports. As I said, there must be a step I am missing or there is something more going on.