Another bug that has happened a few times but I couldn't really figure out how to initiate it.
Yes. I have restarted!
After manually buying a few items in the Yarn Shop when you have the Buy All button, a few glitches occur.
1. The picture of an item will fade and it's cost below it will not go up to the next level of that item. Also you cannot click on it.
2. Some items will have the item's name appear below the picture instead of the cost.
3. All items will be missing the Effect, Level and Cost once you click on them to view their information.
4. After mass-buying a few items once the glitch is happening, the X to close the window vanishes, so you need to click the Prestige bar or go to the gift menu to close the window.
Any kind of prestige will get rid of these glitches.
This doesn't happen in the other shops. I usually buy the cats manually early on as the paw is a waste of money and I don't want it until I can auto buy all the upgrades with ease.
I don't know if different setups contribute to glitches or not, but I use Edge Browser, Windows 10 on a decade old PC that wasn't very good to start with, and I'm in China. Recreating the first two may be possible, but the third will probably be a tad tricky.