If your computer has a fixed filter, so the weaned piglets automatically goes to a location, then you have to remember to enter this when using the app.
If you have a filter in PigVision Online it will be visable in the green filter line.
You can remove the filter, by right clicking on the filter line and choose “Clear Filter”. Now you will see all weanings including the ones without location.
On PigVision Mobile Sows you can press “Piglets location” and choose a location.
The next time you wean, the location will already be chosen.