In Pigvision, there is a setup of validations, which means that events have to be entered in the program in the right order.
If you have synchronized your phone and a colleague does registrations on the PC or on his/her phone at the same time, you might get a synchronization error:
When you click on the icon with the synchronization error, you will see a list of items that cannot be synchronized.
You will also see the time of the last synchronization and when the registration of events happened.
It is possible for you to delete an event by swiping to the left and press the bin.