Can't dump WAD from Wiiware and Virtual Console titles

[Mutty99]

I could read my bootmii nand dump, but couldn't pack any kind of wad. Every time I selected the destination folder, this appeared to me:

Cannot call Invoke or BeginInvoke on a control until a window handle is created.

With the previous version of the app, I could pack wads no problem, but my wad manager couldn't install them because of mismatching TMD hash (Wii Mod Lite, Error -1022).

[Mutty99]

Issue update:

Now wad packing works with most recent release, but I still get Error -1022 on all Wad Managers.
I tested all the wads on Dolphin, and they work properly.

This is what the wiki says about Error -1022:
"Imported content hash does not match with the hash from the TMD. Returned by ES_ImportContentEnd and ES_ImportBoot."