# Advanced flow - flow broken - cards disappeared (grayed out / unavailable) after power failure **URL:** \ **Category:** Questions & Help\ **Tags:** flow, homey-pro, advancedflow\ **Created:** [October 6, 2024, 11:46am UTC](https://community.homey.app/t/advanced-flow-flow-broken-cards-disappeared-grayed-out-unavailable-after-power-failure/117501 "2024-10-06T11:46:30Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![KrisC](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/krisc/32/113993_2.png) [@KrisC](https://community.homey.app/u/KrisC)\ **Post date:** [October 6, 2024, 11:46am UTC](https://community.homey.app/t/advanced-flow-flow-broken-cards-disappeared-grayed-out-unavailable-after-power-failure/117501/1 "2024-10-06T11:46:30Z")
I had a short power failure and noticed that my aqara switch was no longer working afterwards. Although the switch was still showing OK in the app (I could switch it on/off) it was no longer switching on the lights. Turns out the advanced flows I had created were broken. The cards that were related to the switch were grayed out and showed as unavailable. Anything I can do to avoid this in the future? ---
**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\ **Post date:** [October 6, 2024, 5:13pm UTC](https://community.homey.app/t/advanced-flow-flow-broken-cards-disappeared-grayed-out-unavailable-after-power-failure/117501/2 "2024-10-06T17:13:06Z")
> [@KrisC](#): > > Anything I can do to avoid this in the future? Check if the App is running, looks lik the App crashed or didn’t start (yet) ---
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [October 6, 2024, 6:39pm UTC](https://community.homey.app/t/advanced-flow-flow-broken-cards-disappeared-grayed-out-unavailable-after-power-failure/117501/3 "2024-10-06T18:39:56Z")
If cards are greyed out, next to ‘crashed’, often the app just stopped, or errored. This is not regarded as ‘crashed’, so you can’t create a flow like: When… -app X crashed Then… -restart app X -send a timeline note about this You’ll need this card, it checks for unavailable devices: ![1000035636](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/0/7/079bb67a75c4696c71cbbf03353a0a9172b4fe44.jpeg) With this card you can restart app X App: [Device Capabilities](https://homey.app/en-nl/app/nl.qluster-it.DeviceCapabilities/Device-Capabilities/) ---
**Author:** ![KrisC](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/krisc/32/113993_2.png) [@KrisC](https://community.homey.app/u/KrisC)\ **Post date:** [October 7, 2024, 7:17pm UTC](https://community.homey.app/t/advanced-flow-flow-broken-cards-disappeared-grayed-out-unavailable-after-power-failure/117501/4 "2024-10-07T19:17:35Z")
Thanks, appreciate the reply. I found the app and installed it. So I suppose you created some kind of flow that every X mintues/hours checks for apps that are stopped and then restarts them? ---
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [October 8, 2024, 1:32am UTC](https://community.homey.app/t/advanced-flow-flow-broken-cards-disappeared-grayed-out-unavailable-after-power-failure/117501/5 "2024-10-08T01:32:46Z")
YW! This trigger card triggers a flow when device X, or _some_ device of app Y becomes unavailable. You only have to add a Then card which restart the related app. I add a 15 minute timer though, to prevent restart loops. Example: > ![1000035701](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/a/1/a136096b1e9d2a2cf7896fe1394163c3bcfd75a5.jpeg)