KB319255: Strikethrough appears for checkbox selections and can not be removed when the attribute element amount is large in MicroStrategy Web 10.4

SYMPTOM:
Strikethrough appears for checkbox selections and can not be removed when the attribute element amount is large in Strategy Web 10.4GA.
Follow the steps below to reproduce the issue in Tutorial project:

• Create a document on Customer attribute and also some other objects
• Insert a filter panel and insert the Customer selector as checkbox selector
• Run in presentation mode. First check all in Customer then uncheck any single element. Notice that all other selected elements have one strikethrough, which didn't make sense.
  

CAUSE:
This is a known issue with Strategy Web 10.4GA.
ACTION:
The issue is addressed in Strategy 10.8 and in 10.4 HF2.
The Strategy Internal Reference Number for the issue discussed in this technical note is DE49732.
KB319255