The vendor has published 1 unique mention(s) for this bug: 1. Attempts to launch a VDA might result in a gray screen. The issue is the result of a timeout of the HDX™ user policy validation. The timeout can occur when there are many LDAP servers and one or more servers are not accessible to the VDA. Latest urls for this bug: 1. https://docs.citrix.com//en-us/linux-virtual-delivery-agent/1912-ltsr/whats-new/cumulative-update-2/fixed-issues