If we look at the tall grass of Minecraft in a certain direction, we observe a certain symmetry. However, if we look in this same direction, we can see that the pointed dripstone and glow berries blocks have no symmetry.
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Works as intended, the other cross-model blocks have the problem

Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response.
Is this still an issue in the latest version? If yes, can you please add it to the affected versions (or mention it if you are not the reporter)?
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Updated to add newest versions/betas

As per known parity (MCPE-153952), resolving as WAI.
When first added, pointed dripstone had an x-shaped rendering how in MCPE-119916, but was then changed to java rendering as it didn't look very good. I think it will be decided as WAI.
related to MCPE-40646