No successful assignments: concat23 errors: Agent infeasible

Hello! I trained a model on yolov11m, with imgsz 640x640 , using DFC i executed all required commands, parser, optimize, but when i try to compile it, it returns this error:
hailo compiler --hw-arch hailo8 model_best_optimized.har

[info] No GPU chosen and no suitable GPU found, falling back to CPU.

WARNING: All log messages before absl::InitializeLog() is called are written to STDERR

E0000 00:00:1770812332.942657 1761958 cuda_dnn.cc:8310] Unable to register cuDNN factory: Attempting to register factory for plugin cuDNN when one has already been registered

E0000 00:00:1770812332.949248 1761958 cuda_blas.cc:1418] Unable to register cuBLAS factory: Attempting to register factory for plugin cuBLAS when one has already been registered

[info] Current Time: 12:18:59, 02/11/26

[info] CPU: Architecture: x86_64, Model: Intel(R) Xeon(R) Silver 4314 CPU @ 2.40GHz, Number Of Cores: 16, Utilization: 0.1%

[info] Memory: Total: 31GB, Available: 30GB

[info] System info: OS: Linux, Kernel: 5.15.0-70-generic

[info] Hailo DFC Version: 3.32.0

[info] HailoRT Version: Not Installed

[info] PCIe: No Hailo PCIe device was found

[info] Running `hailo compiler --hw-arch hailo8 model_best_optimized.har`

[info] Compiling network

[info] To achieve optimal performance, set the compiler_optimization_level to “max” by adding performance_param(compiler_optimization_level=max) to the model script. Note that this may increase compilation time.

[info] Loading network parameters

[info] Starting Hailo allocation and compilation flow

[info] Building optimization options for network layers…

[info] Successfully built optimization options - 2m 54s 915ms

[info] Trying to compile the network in a single context

[info] Single context flow failed: Recoverable single context error

[info] Building optimization options for network layers…

[info] Successfully built optimization options - 3m 16s 553ms

[error] Mapping Failed (allocation time: 3m 16s)

No successful assignments: concat23 errors:

Agent infeasible

[error] Failed to produce compiled graph

[error] BackendAllocatorException: Compilation failed: No successful assignments: concat23 errors:

Agent infeasible

After looking a bit online i tried again but this time exporting to onnx with imgsz 416x416 images kind of worked
Can someone help me understand why it throws those errors? Thanks