Preview and renditions are no longer getting created on image upload in our production author instance 6.4.8. (it still works in the lower environments) Here's what we see in the error log:
28.09.2020 10:58:52.776 *ERROR* [JobHandler: /var/workflow/instances/server0/2020-09-27/mfs_update_asset_209:/content/dam/mfs-enterprise/mfscom/images/abstract/us/dietz_calc1.gif/jcr:content/renditions/original] com.day.cq.dam.core.impl.gfx.CommonsGfxRenderer Could not render: wid=48&hei=48&fit=constrain,1&fmt=png-alpha&rszfast=1&layer=comp&layer=0&src=/content/dam/mfs-enterprise/mfscom/images/abstract/us/dietz_calc1.gif/jcr:content/renditions/original
java.lang.NullPointerException: null
at com.day.cq.dam.core.impl.gfx.CommonsGfxRenderer.createImageLayer(CommonsGfxRenderer.java:486) [com.day.cq.dam.cq-dam-core:5.11.388]
at com.day.cq.dam.core.impl.gfx.CommonsGfxRenderer.createLayer(CommonsGfxRenderer.java:165) [com.day.cq.dam.cq-dam-core:5.11.388]
at com.day.cq.dam.core.impl.gfx.CommonsGfxRenderer.render(CommonsGfxRenderer.java:116) [com.day.cq.dam.cq-dam-core:5.11.388]
at com.adobe.cq.gfx.impl.GfxImpl.render(GfxImpl.java:94) [com.adobe.cq.cq-gfx:1.4.2]
at com.day.cq.dam.core.impl.RenditionMakerImpl$PlanBasedTemplate.apply(RenditionMakerImpl.java:131) [com.day.cq.dam.cq-dam-core:5.11.388]
at com.day.cq.dam.core.impl.RenditionMakerImpl.generateRenditions(RenditionMakerImpl.java:210) [com.day.cq.dam.cq-dam-core:5.11.388]
at com.day.cq.dam.core.process.CreateThumbnailProcess.createThumbnails(CreateThumbnailProcess.java:121) [com.day.cq.dam.cq-dam-core:5.11.388]
at com.day.cq.dam.core.process.ThumbnailProcess.execute(ThumbnailProcess.java:102) [com.day.cq.dam.cq-dam-core:5.11.388]
at com.day.cq.workflow.compatibility.CQWorkflowProcessRunner.execute(CQWorkflowProcessRunner.java:93) [com.day.cq.workflow.cq-workflow-impl:6.2.14]
at com.adobe.granite.workflow.core.job.HandlerBase.executeProcess(HandlerBase.java:194) [com.adobe.granite.workflow.core:2.0.168.CQ640-B0010]
at com.adobe.granite.workflow.core.job.JobHandler.process(JobHandler.java:261) [com.adobe.granite.workflow.core:2.0.168.CQ640-B0010]
at org.apache.sling.event.impl.jobs.JobConsumerManager$JobConsumerWrapper.process(JobConsumerManager.java:502) [org.apache.sling.event:4.2.12]
at org.apache.sling.event.impl.jobs.queues.JobQueueImpl.startJob(JobQueueImpl.java:293) [org.apache.sling.event:4.2.12]
at org.apache.sling.event.impl.jobs.queues.JobQueueImpl.access$100(JobQueueImpl.java:60) [org.apache.sling.event:4.2.12]
at org.apache.sling.event.impl.jobs.queues.JobQueueImpl$1.run(JobQueueImpl.java:229) [org.apache.sling.event:4.2.12]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
