Hi, I’m trying to use BlueZ 5.52 installed on Raspberry Pi 4 to provision mesh network. The initial provisioning works fine and I’m able to provision and control device, but if I close meshctl and then open it again then all commands related to data transmission fail with ‘Failed to AcquireWrite’ error here gatt.c:367 I’ve googled a lot and checked the source code and see that the problem might be somehow related to the OS itself and file descriptor lock, but I haven’t found any solution yet. Currently digging into g_dbus_proxy_call with no luck … Steps to reproduce: 1. run meshctl 2. discover-unprovisioned on 3. provision <uuid> 4. menu config 5. target 0101 (newly added device unicast address) 6. ttl-get Steps 1-6 work fine 7. exit meshctl and launch it again 8. connect <newly added device unicast address> 9. target <newly added device unicast address> 10. ttl-get (or any command that transmits data) fails with ‘Failed to AcquireWrite’ I've also tried the latest code from master branch but got the same error. Any ideas where I need to look )? Thanks, Yury