@luis_bergua The problem is reappearing right now. Therefore I am posting the debug files.
debug.log
2022-12-25 10:24:34,055 INFO MainThread:1764 [wandb_setup.py:_flush():68] Configure stats pid to 1764
2022-12-25 10:24:34,055 INFO MainThread:1764 [wandb_setup.py:_flush():68] Loading settings from C:\Users\Susanne\.config\wandb\settings
2022-12-25 10:24:34,055 INFO MainThread:1764 [wandb_setup.py:_flush():68] Loading settings from i:\tinyml\tiny_cnn\wandb\settings
2022-12-25 10:24:34,055 INFO MainThread:1764 [wandb_setup.py:_flush():68] Loading settings from environment variables: {'_require_service': 'True', 'mode': 'online'}
2022-12-25 10:24:34,055 INFO MainThread:1764 [wandb_setup.py:_flush():68] Inferring run settings from compute environment: {'program': '<python with no main file>'}
2022-12-25 10:24:34,056 INFO MainThread:1764 [wandb_init.py:_log_setup():476] Logging user logs to i:\tinyml\tiny_cnn\wandb\run-20221225_102434-2dyabu0c\logs\debug.log
2022-12-25 10:24:34,056 INFO MainThread:1764 [wandb_init.py:_log_setup():477] Logging internal logs to i:\tinyml\tiny_cnn\wandb\run-20221225_102434-2dyabu0c\logs\debug-internal.log
2022-12-25 10:24:34,056 INFO MainThread:1764 [wandb_init.py:_jupyter_setup():426] configuring jupyter hooks <wandb.sdk.wandb_init._WandbInit object at 0x000001FC77A5D900>
2022-12-25 10:24:34,057 INFO MainThread:1764 [wandb_init.py:init():516] calling init triggers
2022-12-25 10:24:34,057 INFO MainThread:1764 [wandb_init.py:init():519] wandb.init called with sweep_config: {}
config: {}
2022-12-25 10:24:34,057 INFO MainThread:1764 [wandb_init.py:init():569] starting backend
2022-12-25 10:24:34,057 INFO MainThread:1764 [wandb_init.py:init():573] setting up manager
2022-12-25 10:24:34,060 INFO MainThread:1764 [backend.py:_multiprocessing_setup():102] multiprocessing start_methods=spawn, using: spawn
2022-12-25 10:24:34,065 INFO MainThread:1764 [wandb_init.py:init():580] backend started and connected
2022-12-25 10:24:34,080 INFO MainThread:1764 [wandb_run.py:_label_probe_notebook():1116] probe notebook
2022-12-25 10:24:34,083 INFO MainThread:1764 [wandb_run.py:_label_probe_notebook():1126] Unable to probe notebook: 'NoneType' object has no attribute 'get'
2022-12-25 10:24:34,083 INFO MainThread:1764 [wandb_init.py:init():658] updated telemetry
2022-12-25 10:24:34,183 INFO MainThread:1764 [wandb_init.py:init():693] communicating run to backend with 60 second timeout
2022-12-25 10:24:35,152 INFO MainThread:1764 [wandb_run.py:_on_init():2006] communicating current version
2022-12-25 10:24:35,417 INFO MainThread:1764 [wandb_run.py:_on_init():2010] got version response
2022-12-25 10:24:35,418 INFO MainThread:1764 [wandb_init.py:init():728] starting run threads in backend
2022-12-25 10:24:40,442 INFO MainThread:1764 [wandb_run.py:_console_start():1986] atexit reg
2022-12-25 10:24:40,443 INFO MainThread:1764 [wandb_run.py:_redirect():1844] redirect: SettingsConsole.WRAP_RAW
2022-12-25 10:24:40,443 INFO MainThread:1764 [wandb_run.py:_redirect():1909] Wrapping output streams.
2022-12-25 10:24:40,443 INFO MainThread:1764 [wandb_run.py:_redirect():1931] Redirects installed.
2022-12-25 10:24:40,443 INFO MainThread:1764 [wandb_init.py:init():765] run started, returning control to user process
2022-12-25 10:24:40,444 INFO MainThread:1764 [wandb_config.py:__setitem__():155] config set batch_size = 32 - <bound method Run._config_callback of <wandb.sdk.wandb_run.Run object at 0x000001FC452EB040>>
2022-12-25 10:24:40,444 INFO MainThread:1764 [wandb_run.py:_config_callback():1163] config_cb batch_size 32 None
2022-12-25 10:24:40,444 INFO MainThread:1764 [wandb_config.py:__setitem__():155] config set learn_rate = 0.001 - <bound method Run._config_callback of <wandb.sdk.wandb_run.Run object at 0x000001FC452EB040>>
2022-12-25 10:24:40,444 INFO MainThread:1764 [wandb_run.py:_config_callback():1163] config_cb learn_rate 0.001 None
2022-12-25 10:24:40,444 INFO MainThread:1764 [wandb_config.py:__setitem__():155] config set momentum = 0.9 - <bound method Run._config_callback of <wandb.sdk.wandb_run.Run object at 0x000001FC452EB040>>
2022-12-25 10:24:40,444 INFO MainThread:1764 [wandb_run.py:_config_callback():1163] config_cb momentum 0.9 None
2022-12-25 10:24:40,444 INFO MainThread:1764 [wandb_config.py:__setitem__():155] config set epochs = 5 - <bound method Run._config_callback of <wandb.sdk.wandb_run.Run object at 0x000001FC452EB040>>
2022-12-25 10:24:40,445 INFO MainThread:1764 [wandb_run.py:_config_callback():1163] config_cb epochs 5 None
2022-12-25 10:24:40,445 INFO MainThread:1764 [wandb_config.py:__setitem__():155] config set classes = 3 - <bound method Run._config_callback of <wandb.sdk.wandb_run.Run object at 0x000001FC452EB040>>
2022-12-25 10:24:40,445 INFO MainThread:1764 [wandb_run.py:_config_callback():1163] config_cb classes 3 None
2022-12-25 10:24:40,445 INFO MainThread:1764 [wandb_config.py:__setitem__():155] config set id = 2dyabu0c - <bound method Run._config_callback of <wandb.sdk.wandb_run.Run object at 0x000001FC452EB040>>
2022-12-25 10:24:40,445 INFO MainThread:1764 [wandb_run.py:_config_callback():1163] config_cb id 2dyabu0c None
2022-12-25 10:24:40,445 INFO MainThread:1764 [wandb_config.py:__setitem__():155] config set architecture = efficientNetB0_0.1_96_c3_o3_keras - <bound method Run._config_callback of <wandb.sdk.wandb_run.Run object at 0x000001FC452EB040>>
2022-12-25 10:24:40,446 INFO MainThread:1764 [wandb_run.py:_config_callback():1163] config_cb architecture efficientNetB0_0.1_96_c3_o3_keras None
2022-12-25 10:24:40,446 INFO MainThread:1764 [wandb_config.py:__setitem__():155] config set optimizer = SGD - <bound method Run._config_callback of <wandb.sdk.wandb_run.Run object at 0x000001FC452EB040>>
2022-12-25 10:24:40,446 INFO MainThread:1764 [wandb_run.py:_config_callback():1163] config_cb optimizer SGD None
2022-12-25 10:24:40,536 INFO MainThread:1764 [wandb_run.py:_tensorboard_callback():1299] tensorboard callback: i:\tinyml\tiny_cnn\wandb\run-20221225_102434-2dyabu0c\files\train, True
2022-12-25 10:25:31,797 INFO MainThread:1764 [wandb_run.py:_tensorboard_callback():1299] tensorboard callback: i:\tinyml\tiny_cnn\wandb\run-20221225_102434-2dyabu0c\files\validation, True
2022-12-25 10:28:02,476 INFO MainThread:1764 [wandb_run.py:_config_callback():1163] config_cb ('_wandb', 'visualize', 'conf_mat') {'panel_type': 'Vega2', 'panel_config': {'panelDefId': 'wandb/confusion_matrix/v1', 'fieldSettings': {'Actual': 'Actual', 'Predicted': 'Predicted', 'nPredictions': 'nPredictions'}, 'stringSettings': {'title': ''}, 'transform': {'name': 'tableWithLeafColNames'}, 'userQuery': {'queryFields': [{'name': 'runSets', 'args': [{'name': 'runSets', 'value': '${runSets}'}], 'fields': [{'name': 'id', 'fields': []}, {'name': 'name', 'fields': []}, {'name': '_defaultColorIndex', 'fields': []}, {'name': 'summaryTable', 'args': [{'name': 'tableKey', 'value': 'conf_mat_table'}], 'fields': []}]}]}}} None
2022-12-25 10:28:03,896 INFO MainThread:1764 [wandb_run.py:_finish():1753] finishing run susbrock/efficientNetB0/2dyabu0c
2022-12-25 10:28:03,980 INFO MainThread:1764 [jupyter.py:save_history():477] saving 27 cells to _session_history.ipynb
2022-12-25 10:28:03,980 INFO MainThread:1764 [wandb_run.py:_config_callback():1163] config_cb ('_wandb', 'session_history') code\_session_history.ipynb None
2022-12-25 10:28:04,018 INFO MainThread:1764 [jupyter.py:_save_ipynb():389] looking for notebook: None
2022-12-25 10:28:04,018 INFO MainThread:1764 [wandb_init.py:_jupyter_teardown():408] cleaning up jupyter logic
2022-12-25 10:28:04,018 INFO MainThread:1764 [wandb_run.py:_atexit_cleanup():1955] got exitcode: 0
2022-12-25 10:28:04,018 INFO MainThread:1764 [wandb_run.py:_restore():1938] restore
2022-12-25 10:28:04,018 INFO MainThread:1764 [wandb_run.py:_restore():1944] restore done
debug-internal.log will follow in separate message.
Thanks for your support.