While attempting to craft banners I placed a loom succesfuly and activated/attempted to craft with it, however when the UI briefly showed up the game crashed and closed itself, after confirming it was not something else by repeating this process I came here., Not easy to screenshot, apologies!
Thank you for your report!
We're actually already tracking this issue at MCPE-69848, so I will resolve and link this ticket as a duplicate.
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