Unable boot custom Windows 10 ISO about ventoy

[FadeMind]

@chromer030 I resolved this issue.
Simply RENAME BIG-LETTERS.ISO to small-letters.iso WINDOWS SETUP
Works like a charm.
I maded new fresh ISO 19041.208.200417-1904.vb_release_svc_im_clientpro_oemret_x64fre_pl-pl.iso with only Pro version available. Booted to page wizard disk selecting well.

[chromer030]

Your generated ISO , Does it boot in UEFI mode on virtual machines like Virtualbox , QEMU or vmware ??

Generally modifying Microsoft Original ISO files , lead to losing Signatures that needed on UEFI booting , this ISO files booting well on Legacy bios mode because of no need to signature.
Today i tested Windows 10 AIO 1909 Build 18363.778 April 2020 but also failed on UEFI , it's also modified version of Original ISO.

[FadeMind]

Boot went fine after creating bootable USB stick via Rufus or YUMI tool. I have disabled at all Secure Boot on my device.

[chromer030]

Thank you very much for reporting , so it should be a BUG in Ventoy.
I hope will be fixed in future versions.