Radeon Pro Vega II Performance Mac Pro 2019

hello, i cant render compositions because of this errors:


Render started at Tue 1:59PM (Range: 0.0 to 500.0)
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer upload
Warning: exception during GPU buffer upload
DVIP kernel GodRaysKernel failed to run, out of memory
failed!
Saver1 cannot get Parameter for Input at time 371
Saver1 failed at time 371
Warning: exception during GPU buffer upload
Warning: exception during GPU buffer upload
DVIP kernel GodRaysKernel failed to run, out of memory
failed!
Saver1 cannot get Parameter for Input at time 373
Saver1 failed at time 373
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer download
Warning: exception during GPU buffer upload
Warning: exception during GPU buffer upload
DVIP kernel GodRaysKernel failed to run, out of memory
failed!
Saver1 cannot get Parameter for Input at time 377
Saver1 failed at time 377
Warning: exception during GPU buffer upload
Warning: exception during GPU buffer upload
DVIP kernel GodRaysKernel failed to run, out of memory
failed!
Saver1 cannot get Parameter for Input at time 378
Saver1 failed at time 378
Warning: exception during GPU buffer upload
Warning: exception during GPU buffer upload
DVIP kernel GodRaysKernel failed to run, out of memory
failed!
Saver1 cannot get Parameter for Input at time 379
Saver1 failed at time 379
Warning: exception during GPU buffer upload
Warning: exception during GPU buffer upload
DVIP kernel GodRaysKernel failed to run, out of memory
failed!
Saver1 cannot get Parameter for Input at time 380
Saver1 failed at time 380
ERROR: Render failed at Tue 2:01PM! Last frame rendered: 376.0!


after a while working on a simple 3 d title composition i got my Graphic Card Memory full and when stopped workking on a project its not releasing.

my comp spec are:

3,2 GHz 16 cores Intel Xeon W
32 GB 2933 MHz DDR4
AMD Radeon Pro Vega II 32 GB


all updated, system and fusion studio 17.

anyone working on a similar system in fusion ?