JK BMS "Low Battery" and "Cells Imbalance" errors - BLE Problem?

[peregrines2]

Recently built another 16s 48V system for my mother with JK BMS and 1 Multiplus3 3000.
Cells are perfectly balanced but I get "Cell imbalanced" Alarms and Low SOC Alarms about twice a day.

Load is extremely low and I double checked all my connections. Errors happen any time not connected top any readable voltage-drops or high loads. Also in the middle of the night when no charging or discharging is happening at all.
Is there something else that could cause this?

Normally I use a wired connection but this time I went with BLE.
I never had this problem before :(
Also tried latest nightly but the error persists.
Thank You!

@4000000066b24a820ef458a4 WARNING:SerialBattery:Jkbms_Ble: Cell 15 voltage out of range (1 - 5 V): 25.088 
@4000000066aa4c581cbfd33c WARNING:SerialBattery:Jkbms_Ble: Cell 13 voltage out of range (1 - 5 V): 45.568
@4000000066aa4c581cc6ff2c WARNING:SerialBattery:Jkbms_Ble: Cell 14 voltage out of range (1 - 5 V): 45.581
@4000000066aa4c581ccd96ac WARNING:SerialBattery:Jkbms_Ble: Cell 15 voltage out of range (1 - 5 V): 45.581
@4000000066adfd3d2e285e3c WARNING:SerialBattery:Jkbms_Ble: Cell 15 voltage out of range (1 - 5 V): 11.008000000000001
@4000000066aee7073099bbfc WARNING:SerialBattery:Jkbms_Ble: Cell 14 voltage out of range (1 - 5 V): 62.464
@4000000066aee70730a0b13c WARNING:SerialBattery:Jkbms_Ble: Cell 15 voltage out of range (1 - 5 V): 61.964
@4000000066b30cbb049a3af4 DEBUG:SerialBattery:decode_cellinfo_jk02(): self.frame_buffer
@4000000066b30cbb04bece3c DEBUG:SerialBattery:[85, 170, 235, 144, 2, 195, 4, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 4, 13, 4, 13, 5, 13, 6, 13, 4, 13, 5, 13, 5, 13, 4, 13, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 0, 0, 5, 13, 2, 0, 5, 3, 54, 0, 56, 0, 55, 0, 56, 0, 55, 0, 56, 0, 54, 0, 55, 0, 54, 0, 55, 0, 54, 0, 55, 0, 54, 0, 55, 0, 55, 0, 55, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 1, 0, 0, 0, 0, 74, 208, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 248, 0, 247, 0, 0, 0, 8, 0, 0, 0, 0, 87, 22, 46, 4, 0, 120, 206, 4, 0, 3, 0, 0, 0, 41, 160, 15, 0, 100, 0, 0, 0, 26, 34, 39, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 0, 1, 0, 0, 0, 201, 3, 0, 0, 0, 0, 252, 232, 65, 64, 0, 0, 0, 0, 212, 20, 179, 28, 0, 1, 0, 1, 183, 5, 0, 0, 7, 85, 135, 1, 0, 0, 0, 0, 9, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 254, 255, 127, 220, 15, 1, 0, 0, 0, 0, 0, 0, 135]
@4000000066b30cbb04d3aa14 DEBUG:SerialBattery:{'model_nbr': 'BK-BLE-1.0', 'device_info': {'hw_rev': '11.XW', 'sw_rev': '11.287', 'uptime': 2564100, 'vendor_id': 'JK_B2A24S20P', 'manufacturing_date': '240708', 'serial_number': '3063047542', 'production': 'Input Us'}, 'last_update': 1723010224.5200677, 'settings': {'cell_uvp': 2.6, 'cell_uvpr': 2.65, 'cell_ovp': 3.6, 'cell_ovpr': 3.5500000000000003, 'balance_trigger_voltage': 0.005, 'power_off_voltage': 2.5500000000000003, 'max_charge_current': 50.0, 'max_discharge_current': 50.0, 'max_balance_current': 50.0, 'cell_count': 16, 'charging_switch': True, 'discharging_switch': True, 'balancing_switch': True}, 'cell_info': {'voltages': [3.332, 3.333, 3.333, 3.333, 3.333, 3.333, 3.333, 3.333, 3.332, 3.332, 3.333, 3.334, 3.332, 3.333, 3.333, 3.332], 'average_cell_voltage': 3.333, 'delta_cell_voltage': 0.002, 'max_voltage_cell': 5, 'min_voltage_cell': 3, 'resistances': [0.054, 0.056, 0.055, 0.056, 0.055, 0.056, 0.054, 0.055, 0.054, 0.055, 0.054, 0.055, 0.054, 0.055, 0.055, 0.055, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0], 'total_voltage': 53.322, 'current': 0.0, 'temperature_sensor_1': 24.8, 'temperature_sensor_2': 24.700000000000003, 'temperature_mos': 26.5, 'balancing_current': 0.0, 'balancing_action': 0.0, 'battery_soc': 87, 'capacity_remain': 273.942, 'capacity_nominal': 315.0, 'cycle_count': 3, 'cycle_capacity': 1024.041, 'charging_switch_enabled': True, 'discharging_switch_enabled': True, 'balancing_active': False, 'error_bitmask_16': '0x0', 'error_bitmask_2': '0000000000000000', 'power': 0.0}, 'warnings': {'resistance_too_high': False, 'cell_count_wrong': False, 'charge_overtemp': False, 'charge_undertemp': False, 'discharge_overtemp': False, 'cell_overvoltage': False, 'cell_undervoltage': False, 'charge_overcurrent': False, 'discharge_overcurrent': False}}
@4000000066b30cbb05ef18ac DEBUG:SerialBattery:logged to dbus [87]
@4000000066b30cbb061653a4 DEBUG:SerialBattery:Cells:[1]3.332V [2]3.333V [3]3.333V [4]3.333V [5]3.333V [6]3.333V [7]3.333V [8]3.333V [9]3.332V [10]3.332V [11]3.333V [12]3.334V [13]3.332V [14]3.333V [15]3.333V [16]3.332V [17]NoneV [18]NoneV [19]NoneV [20]NoneV [21]NoneV [22]NoneV [23]NoneV [24]NoneV [25]NoneV [26]NoneV [27]NoneV [28]NoneV [29]NoneV [30]NoneV [31]NoneV [32]NoneV 

[peregrines2]

Okay. Because I didnt find a solution/get any help, I trashed BLE and installed a Serial Connection. 4 days without any problems now.
So this issue was very likely BLE related.