When you place a block, it will be invisible for a short time before appearing. When you destroy a block, it will appear to still be there for a short time.
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Dupe of MC-62166
When you place a block, it will be invisible for a short time before appearing. When you destroy a block, it will appear to still be there for a short time.
Dupe of MC-62166
Have the same experience on Fedora 20, Java 1.7.0_60 OpenJDK
Attached a screenshot.