Is there a guide on how to do this? I've not done this before so any help to temporarily fix this bug would be greatly appreciated. Many thanks in advance!
We think MCPE-182335 might be related to this bug. The Chiseled Bookshelf does not display correctly when RTX is enabled. I have written reproduction notes in the ticket with supporting images and a video.
For those looking for a temporary fix, the resource pack (VanillaRTX) does not include a blocks.json file.
The below temporary fix will not display books as you add them to the bookshelf, however the block will display correctly.
Alternatively, the below code is part of the experimental folder in VanillaRTX. In theory it should work if you turn on 'experimental' under VanillaRTX by clicking on the Settings icon.
A new file should be added to the top directory of VanillaRTX named 'blocks.json' with the following code: