Your app may be crashing if you're receiving mining rewards. Jaxx is a lightweight wallet not equipped to handle the numerous transactions associated with payouts. One transaction sent from your pool is actually composed of several "micro-transactions" that may cause complications on your end as well as on our end.
If you click on the transaction ID of one of your payouts, you'll see that there's several inputs as well as outputs so it's not a simple send / receive transaction that Jaxx is designed for.
Please redirect your mining payouts as soon as possible and wait for a new update to rectify this issue.