CAMPAIGN_PERFORMANCE_REPORT predicate Labels CONTAINS_ANY results in 500 Internal Server Error

[jpuc...@dealerinspire.com]

I'm trying to filter campaigns by their Label. The predicate LabelIds CONTAINS_ANY works fine, but I don't want to have to make an additional network call to the API just to look up the LabelId first.

When trying the predicate Labels CONTAINS_ANY, I'm getting a 500 Internal Server Error response from the API.

POST /api/adwords/reportdownload/v201802 HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Host: adwords.google.com
Authorization: REDACTED
developerToken: REDACTED
clientCustomerId: 4625294097
User-Agent: FUEL API (AwApi-PHP, googleads-php-lib/34.0.0, PHP/7.1.3, GuzzleHttp/6.3.3, curl/7.38.0)
skipReportHeader: true
skipColumnHeader: true
skipReportSummary: true
useRawEnumValues: false
includeZeroImpressions: true

__rdxml=<?xml version="1.0"?>
<reportDefinition><selector><fields>CampaignId</fields><fields>Cost</fields><fields>Labels</fields><fields>CampaignStatus</fields><fields>BudgetId</fields><fields>LabelIds</fields><predicates><field>Labels</field><operator>CONTAINS_ANY</operator><values>Video</values></predicates></selector><reportName>Campaign Budget Report for AdWords Client 4625294097</reportName><reportType>CAMPAIGN_PERFORMANCE_REPORT</reportType><dateRangeType>TODAY</dateRangeType><downloadFormat>CSV</downloadFormat></reportDefinition>


Response:
REDACTED REPORT DATA
--------
Error:
Server error: `POST https://adwords.google.com/api/adwords/reportdownload/v201802` resulted in a `500 Internal Server Error` response