Within Panels app (“Manage Space”), I see app takes about 407 GB. But in iphone’s Settings/storage, it shows Panels taking 438GB. I delete collection once read to free up space. But seems like it’s not really ‘deleting’. I tried “clear cache” & it does not work.
Can anyone help on this?
We will look into it. thanks for the report 
Hey I have this issue too. My Ipad says 155.42 gb in settings, while the itune Apple Music file transfer says 119.98GB used. A few times while adding material to the app, some material never showed up in Panels. I am wondering if it downloaded the material and somehow has it in there but isn’t presenting it to me.
I figured this out, when you use the import function from Panels the files can become invisible and take up space but you can’t find or delete them. I moved my comic files to a separate folder in Files then deleted and redownloaded Panels, then I only used Files to transfer comics into the Panels folder. Doing this made it so there was no space discrepancy. I think the import function didn’t work on cbz files for me but did for cbr.