Interesting. I have the same workflow except I’m using Affinity Photo instead of Photoshop for the last stage of image processing and I haven’t had this problem at all with PhotoLab 5 and Canon raw files to 16 bit tiffs to AP to jpgs.
I can confirm this behaviour. After PL5.0.1 has finished exporting a .CRF2 or .CR3 as a TIFF, I open it in Photoshop (via PL’s ‘open output file with’) but then in Photoshop I can’t save, or even save as, the file until I close PL5.0.1. PL3 did not behave like this.
I suppose this might be fixed in PL5.0.2 but I don’t know yet, it’s still downloading as I type.
I also have this issue which I think started from the 5.01 update.
Note: I am opening Photolab-created 16bit TIF files in Photoshop and failing to save them as 8bit JPG, while PhotoLab is open. If I keep the unsaved file open in Photoshop and close PhotoLab, I can then save the file.
I’m also getting the same message in PL5 (which I bought only a couple of days ago and updated again yesterday to the newest release). I am exporting a photo to PS Elements, then adding a “style” to a frame I’d added in PL5, and trying to save.
I exported the file to Affinity instead and simply saved as a JPEG, without editing. There was no problem doing this, or with then opening this same file in PSE, working on it, and saving it.
I notice that there are lots of .tmp files appearing alongside the photos in the relevant folder, with file names beginning ps. I’ve never see these before when using PSE to work with images exported direct from PL4.
I also normally work with Nik filters in PSE on images I’ve “exported to application” from PL. After doing this and re-sizing I add a watermark in PL, and a white frame. I export that file to PSE to colour the frame grey and add a style. So my images tend to pass back and forth quite a bit from PL to PSE, and this has never caused an issue before.
Exporting to disc from PL5 and then opening the file in PSE causes no problem.
As per David McA, I can save the file if I first close PL5. However, if I export a TIFF from PL5 to PSE and then use Nik filters on it, I can then save the resulting JPEG in PSE without a problem. What I don’t seem able to do is add a frame in PL5 “Effects” palate and export it to PSE and then work further on this image in PSE and save it while PL5 is open.
It seems that I can save the file in PSE after “export to application” from PL5 if I select a different image in PL5 before saving. In other words, if I ensure that the image I’ve exported, worked on in PSE and want to save in PSE is no longer selected or showing in the customize panel in PL5, I am able to save the edited image in PSE without the need to actually close down PL5.