# CAN and potential sync issue when performing QGL

**URL:** <https://klipper.discourse.group/t/can-and-potential-sync-issue-when-performing-qgl/3815>\
**Category:** General Discussion\
**Created:** [August 12, 2022, 8:10am UTC](https://klipper.discourse.group/t/can-and-potential-sync-issue-when-performing-qgl/3815 "2022-08-12T08:10:06Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![AlexOr](https://avatars.discourse-cdn.com/v4/letter/a/977dab/32.png) [@AlexOr](https://klipper.discourse.group/u/AlexOr)\
**Post date:** [August 24, 2022, 9:17am UTC](https://klipper.discourse.group/t/can-and-potential-sync-issue-when-performing-qgl/3815/3 "2022-08-24T09:17:20Z")

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May I please bump this topic? The reason is that I’m frequently getting these delays and "“BLTouch failed to deploy” errors when perfroming QGL and - less frequently homing Z.

Based on advise from @koconnor in the [CANBUS Communication timeout while homing Z](https://klipper.discourse.group/t/canbus-communication-timeout-while-homing-z/3741) thread. I took fresh canable and updated with the latest canable\_fw from [GitHub - candle-usb/candleLight\_fw: gs\_usb compatible firmware for candleLight, cantact and canable](https://github.com/candle-usb/candleLight_fw) (built like 2 days ago)

… and got he same issues almost instantly. Would it help if I post Klipper log straight after this happens again? Apologies for bringing this up again hope I’m not annoying anyone.

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_[View the full topic](https://klipper.discourse.group/t/can-and-potential-sync-issue-when-performing-qgl/3815)._