While creating an adventure map I came across a very troublesome bug. After adding too many models, the resource pack started unloading. As you can see on screen 1 and 2 everything is working normal. After adding a new not existing "w" model (screen 3), function #tick stopped working (screen 4). When I changed "w" model into "deadfbi1", whitch was in models files, game unload all resouces. I am sure, that json file was fine, because it happens with every other working model. My resourcepack file has 134 MB and over 450 models. Sorry for my English.

Edit: Correcting errors gives nothing. My point was that with too many models the game can not stand it. I divided my resourcepack into two parts. Each of them works correctly, but when I combine them, the game unloads all resources. I know that there are resourcepacks with a resolution of 2048x2048, so it's not the fault of textures, probably the number of models.

Edit2: I noticed that after loading two parts of the resource pack, the textures atlas has more than 16384x16384 pixels, which causes textures to be unloaded. If this is a deliberate action, I am very sorry that I reported it here, but this limit should be strongly increased.

[08:55:47] [Client thread/INFO]: Caught error stitching, removing all assigned resourcepacks