aRDP: Cannot send Shift+Del using soft keyboard, onscreen Shift modifier, or Send Keys

[cemysce]

I am unable to send Shift+Del using any of the following techniques, they all either end up sending either just Del, or perhaps Shift followed (separately) by Del (haven't verified what it's actually sending):

• software keyboard (using Hacker's Keyboard since it has the closest to PC key layout I've ever found)
• toggling on the on-screen Shift modifier while using aforementioned keyboard app to send Del
• using Send Keys feature to enable "Shift" modifier while sending "Delete (Forward)" key (actually this method doesn't seem to send anything at all, not even just the Delete key)

I am running aRDP Free 115480 on a Pixel 8 Pro. The remote PC is running Windows 7 with the latest updates, though I'd be surprised if it's an issue with Windows since every other RDP client I've used (on PC) can successfully send Shift+Del.

FWIW this has been an issue for me for years, not just recently. I only just now decided to submit an issue.