Some shutter speeds not appearing in Lightroom metadata?

Troubleshooting and Bugs
1

I am copying my film with a digital camera as RAW files. In Negative Lab Pro, I am editing the metadata to show the aperture and shutter speed for the analog camera. After exporting the RAW files as JPEGs (and reimporting back to my Lightroom catalog), when I look at the metadata using Lightroom’s “Default” setting – some files show a blank field for the shutter speed. If I switch from Lightroom’s Default metadata viewer to the NLP metadata viewer, the JPEGs do show the analog shutter speeds I entered. And if I export the JPEGs, then the previously missing shutter speeds can be seen. So far, the only shutter speeds which are not being displayed by Lightroom are 1 second and 1/2 second; faster shutter speeds are displayed as expected.

Not a big deal, once I figured out NLP is writing my intended shutter speed to the JPEG file, and the “problem” (a minor one) is that Lightroom is not showing some shutter speeds when using the Default set of metadata.

I am using the NLP Plug-in v3.0.2 with Lightroom Classic v13.0.2 on an iMac running Sonoma.

2

If that bothers you, you may use EXif tool and try to chase down the source of error. You may also keep sidecars in Lightroom. In sidecar file you can easily see if all required data is kept intact. I suspect it just a matter of formatting inside the file which causes the trouble.