Parameter Values Automatically Get Unchecked

[ApocY85]

I have an SSRS report that has quite a few parameters, of which some are dependant on others. For on particular parameter, there is the ability to choose multiple items. When this parameter is enabled, only certain values are checked (default). However, I would like them all to be selected. The peculiar thing is that if I select "(Select All)", everything in the list is checked like normal. But, as soon as I click out of the list, those certain values are unchecked automatically.

This makes no sense to me. To my knowledge, nothing should prevent all values from being selected. Also, the value list query and default value query are identical!

If someone can please explain this "phenomenon", I'd greatly appreciate it. Please let me know if you need any further information.

Thanks!

 

[ApocY85]

Note:

I noticed that some values are automatically deselected when checked individually, as well (as opposed to selecting "(Select All)".

 

[ApocY85]

Please disregard this post, as I have found the solution. I was pulling a field named very similarly to the one I really needed.