Can't set values of a layer created from a threaded script

Hello! I made a script that creates an asset, adds a layer and sets a layer's parameter. When it runs from the main thread, everything works. When I use threading, it doesn't set the parameter value. If I add a pause before the parameter setting, and manually select the created asset in the assets panel while the script is sleeping, it works.

App version: 3.4.1

Windows 10 x64

Steps to reproduce:

1. Run the script attached

Expected result: Created an asset BUG, layer Blur added, changed Intensity parameter value to 5

Actual result: default Intensity parameter value of 1

import time
import substance_sampler as ssa
import threading

def main():
    ssa.save_project()
    asset = ssa.create_asset('BUG', ssa.AssetType.material)
    parameter = 'Intensity'
    filter_name = 'Blur'
    filters = ssa.get_filters('')
    filter = next((x for x in filters if x.name == filter_name), None)
    asset.insert_filter(filter, 0)
    layer = asset.get_layers()[0]
    parm = next((x for x in layer.parameters if x.label == parameter), None)
# Uncomment this, start the script and select the created layer, it will work.
# time.sleep(5)
    if parm:
        parm.value = 5
        ssa.save_project()
    else:
        print(f'Parameter {parameter} not found in layer {layer.name}')
        
t = threading.Thread(target=main)
t.start()