Adding a resource pack while in game will not let you select that new texture pack. Restarting the game is required in order for the game to recognize the new resource pack. Not sure if this is a bug or is a required change but it is different from previous updates.
MC-190913
Texture Packs not being recognized
Resolved
Duplicate
0
Thank you for your report!
However, we are already tracking this issue, and this report is a Duplicate of MC-188473, which is a report that has not been resolved yet.
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