Couldn't find TIFF file in Lightroom Catalog
I've opened a RAW file from Lightroom Catalog in Photoshop to make some edit and after it was saved as TIFF it appeared that Lightroom wasn't responding at the moment. Also I couldn't launch Lightroom again as it was said that Lightroom Catalog was used by some other application. After I've made a reboot it turned out that the new TIFF file that I saved after editing in Photoshop to the same folder doesn't appear in Lightroom as usual. How can I fix that?