Requesting multiple metrics sometimes give different results to requesting them individually

Description of Bug

Sometimes, when a single metric is requested with get_metric_values, it returns a value for a particular time. But if both that metric and another are requested simultaneously, even if they both have a value at the same time, the value returned for the first metric is None.

Steps To Reproduce

Run this, noting that the run is on trial3. then comment out line 7, uncomment line 8, and run it again:

import simvue

run_id = "AZPKJLrtwr3ZerLi4QNnu8"

client = simvue.Client()

metric_names = ["soot_visibility.z.7_0.avg", "soot_visibility.z.37_0.avg"]
#metric_names = ["soot_visibility.z.7_0.avg"]

all_metric_values = client.get_metric_values(metric_names, 'time', run_ids=[run_id])

for (metric_name, single_metric_values) in all_metric_values.items():
    print(f"{metric_name}: {list(single_metric_values.items())[-1]}")

Output:

soot_visibility.z.37_0.avg: ((1731.6583251953125, 'AZPKJLrtwr3ZerLi4QNnu8'), 29.584584259066062)
soot_visibility.z.7_0.avg: ((1731.6583251953125, 'AZPKJLrtwr3ZerLi4QNnu8'), None)

Output with line 8 instead of 7:

soot_visibility.z.7_0.avg: ((1731.6583251953125, 'AZPKJLrtwr3ZerLi4QNnu8'), 19.169060055914873)

Setup

• OS: Ubuntu
• python-api version v2.3.5

get_metric_values の呼び出しから始め、両方の metric_names 構成を使って、提供された再現手順を trial3 に対して実行します。共有タイムスタンプの返却値を比較します。複数のメトリクスを要求した場合に、影響を受けるメトリクスを個別に要求したときに返される値と同じ値が維持されれば完了です。