Release Notes > Version 8.5 Release Notes > Version 8.5.15 Release Notes
Version 8.5.15 Release Notes
The following enhancements and bug fixes and known issues are part of ThingWorx 8.5.15.
* 
Due to a bug in Java 1.8 build 292, ThingWorx will not start if you use this Java build.
Bug Fixes
Security
Fixed potential security issues, including items proactively identified by vulnerability scanning software or PTC Quality Assurance testing. Upgrade as soon as possible to take advantage of these important improvements.
PTC has recently implemented a new support policy with respect to Identity and Access Management (IAM) solutions. See the appropriate eSupport center section for more information.
See this technical support article for important recommendations regarding the use and update of third-party software for ThingWorx.
Mashup Builder
Tracking Number
Fixed an issue with the Numeric Entry widget that was preventing the tab sequence order from being followed correctly.
TW-86406
Known Issues and Limitations
The following items are known issues and are scheduled to be fixed in a future release.
Platform
Tracking Number
An import fails if there are cyclic dependency conditions between projects and their entities.
TW-87877
If you are running a large number of concurrent services that add or update data tables, platform performance may become non-responsive.
TW-85078
Installers
Tracking Number
Upgrading a ThingWorx instance using the ThingWorx Foundation Installer to a version below 8.5.15 will fail when the following are true:
The server is running Linux operating system
Flow is installed on same server
Workaround: Delete the following files from the /etc/yum.repos.d directory:
rabbitmq-erlang.repo
rabbitmq-server.repo
Using the 8.5.15 ThingWorx Foundation Installer will avoid this issue.
See the following support articles for more information: CS344663 and CS344677.
INST-1563
Mashup Builder
Tracking Number
Flex containers redraw to different sizes when navigating between mashups.
TW-87285
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