Problem with loading PDF macro

[Pascal Stephan]

Hello all,

I upgraded our Confluence Data Center instance to Version 8.5.2 last week. Now we face the problem that the viewpdf macro seems broken. The macro only shows the message "

There was a problem converting this attachment."

I saw some tickets where the problem is described as solved since version 7.x (don't know exactly which version) Do anyone know how to fix the problem? It occurs for any PDF.

Maybe anyone else face this problem with Confluence Data Center 8.5.2?

[Pascal Stephan]

I also found following log entry:

2023-10-11 10:56:51,725 ERROR [DefaultSlideCacheManager:thread-1] [com.benryan.conversion.AbstractSandboxSlideConversionTask] convertFile Sandbox conversion is failed. Please check sandbox log for more detail
-- url: /plugins/servlet/pptslide | userName: xxx | referer: xxx | traceId: 9e260b2777528e46
2023-10-11 10:56:51,725 WARN [DefaultSlideCacheManager:thread-1] [com.benryan.conversion.AttachmentDataTempFile] close Failed to delete temporary attachment conversion file D:\\confluence\\data\\temp\\14011150885970425816.tmp
-- url: /plugins/servlet/pptslide | userName: xxx | referer: xxx | traceId: 9e260b2777528e46
java.nio.file.FileSystemException: D:\confluence\data\temp\14011150885970425816.tmp: The process cannot access the file because it is being used by another process