error / photo replacement

I use the lightroom classic program and the mobile version.
I upload photos in lightroom classic to my computer and sync them with lightroom mob version on my tablet.
there was a problem with the synchronization of the photo with the web version and the tablet. part of the photos from one shooting were replaced by photos from another shooting. this error with replacing photos only in the web and mobile versions, the photos on the computer remained the same. help to fix this problem, because I cannot continue to work and use lightroom