Webclipse 1.7.3.201704061509

Steps to replicate :

1. Switch to the Darkest Dark theme.
2. Create two tasks in the Task List view.
3. Double click on one to open it in the editor. Note that it opens fine and the data is correctly displayed.
4. Double click on the second task to open it. The task is not displayed in the editor and at times it is empty. At any given time, only one task can be opened properly for viewing in the editor.

!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.IllegalArgumentException: Argument not valid
at org.eclipse.swt.SWT.error(SWT.java:4514)
at org.eclipse.swt.SWT.error(SWT.java:4448)
at org.eclipse.swt.SWT.error(SWT.java:4419)
at org.eclipse.swt.internal.DPIUtil.validateAndGetImagePathAtZoom(DPIUtil.java:411)

Attached is the full log.