"Valkyrie: Shield Tackle Full Block property was not intended to be a reactive tool to replace all other defense methods. The Shield Tackle Full Block property has been delayed from instantaneous on activation to a 200ms delay after the input. This will also fix some replication bugs." - Patchnotes

I assume this change messed up her indicator (she flashed white when charged) for when the shield tackle is fully charged. Not much of a problem because with some experience on her, you'll know when it's charged anyways.

This might be confusing for newer players tho and should be fixed.