The target block, introduced in the 1.16 update seems to be a transparent block in MCPE. This makes it almost useless inside of redstone mechanisms except for a few very special occasions, which can be easily replicated using other blocks. Please fix this and make it a solid block so it can be useful inside of these builds.
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We're tracking this issue in MCPE-75034, so this ticket is being resolved and linked as a duplicate.
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