Armnn tflite EnqueueWorkload blocks process

I have started using "armnn" library (neural network library for arm processors) I'm running a tflite model on an Arm Mali-T760 with gpu acceleration (with the cpuRef or cpuAcc optimization the network seems to run without any problems). I run the tflite network using "EnqueueWorkload" function, the function works and gives good results for a while but then gets stuck and its thread is blocked (like some kind of infinity loop or deadlock).

It gerts stuck on: output->Execute(); in LoadedNetwork.cpp file.

I've tried to run the "dmesg mali" command and when the thread gets stuck I get following results:

[   50.671951] INFO: task mali_vinstr_ser:954 blocked for more than 10 seconds.
[   50.672004] mali_vinstr_ser D ffffff8008084f98     0   954      2 0x00000000
[   60.671738] INFO: task mali_vinstr_ser:954 blocked for more than 10 seconds.
[   60.671796] mali_vinstr_ser D ffffff8008084f98     0   954      2 0x00000000
[   70.671819] INFO: task mali_vinstr_ser:954 blocked for more than 10 seconds.
[   70.671877] mali_vinstr_ser D ffffff8008084f98     0   954      2 0x00000000
[   80.671713] INFO: task mali_vinstr_ser:954 blocked for more than 10 seconds.
[   80.671763] mali_vinstr_ser D ffffff8008084f98     0   954      2 0x00000000
[   90.671771] INFO: task mali_vinstr_ser:954 blocked for more than 10 seconds.
[   90.671823] mali_vinstr_ser D ffffff8008084f98     0   954      2 0x00000000
[  100.671744] INFO: task mali_vinstr_ser:954 blocked for more than 10 seconds.
[  100.671805] mali_vinstr_ser D ffffff8008084f98     0   954      2 0x00000000
[  110.671714] INFO: task mali_vinstr_ser:954 blocked for more than 10 seconds.
[  110.671785] mali_vinstr_ser D ffffff8008084f98     0   954      2 0x00000000
[  120.671815] INFO: task mali_vinstr_ser:954 blocked for more than 10 seconds.
[  120.671874] mali_vinstr_ser D ffffff8008084f98     0   954      2 0x00000000
[  130.671732] INFO: task mali_vinstr_ser:954 blocked for more than 10 seconds.
[  130.671795] mali_vinstr_ser D ffffff8008084f98     0   954      2 0x00000000
[  140.671715] INFO: task mali_vinstr_ser:954 blocked for more than 10 seconds.
[  140.671770] mali_vinstr_ser D ffffff8008084f98     0   954      2 0x00000000

But when the thread runs normally I get no results running this command.

I'm looking for any hints about the problematic layer\or poblematic inputs I'm giving to the network.

Thanks in advance, Dor