Usually, this is simply a case of giving the device enough time to upload/download the data. You could hold Agenda in the foreground for a while, just stopping your device from going to sleep, to give it time. If you don’t want to to have to constantly keep the device from “sleeping”, you can turn off the Autolock in the Settings.
Repeat this on each device, letting it sync for around 20 minutes. Usually that will allow everything to upload and download, and it will be fast after that.
Note that you can see if it is syncing by looking for the cloud icon at the bottom of the right panel. It appears when there is sync activity.
If that doesn’t help, here is what I recommend:
- Turn off the sync in Agenda on each device.
- It will ask if you want to remove the cloud data. Do that. Remove the cloud data.
- Wait 10 minutes
- Now turn on the sync for one of the devices, and let it finish uploading. The cloud will flash in the right panel, or on the window, until it is done. Can take a bit of time, so you might want to disable sleep or autolock
- Once it is finished, turn on sync for another device, and again wait until finished
- Repeat for last device.