One thing to note is that sender logs are stored in the browser. So if you're using multiple devices, the wallet logs for a send wallet will only correspond to sends on the device that conducted the send - ie it won't show on other devices. Satistics represent what the server knows about all devices. So that's at least one reason there might be a discrepancy.
Anyway, just wanted to provide a bit more info. We are currently doing an iteration on wallets and satistics so we appreciate the feedback!
@ek plans to sync sender wallet logs for this reason. We initially thought sender logs might have sensitive info in them, but over time we realized they don't and syncing them would improve UX issues like this.
wallet logs
for a send wallet will only correspond to sends on the device that conducted the send - ie it won't show on other devices.Satistics
represent what the server knows about all devices. So that's at least one reason there might be a discrepancy.