Auto-update not working

[Caedendi]

I have multiple folders for D2RMM. For both my 1.7.0 folders auto-update doesn't work:

• it shows the message that an update is available
• I press update
• it downloads, extracts and runs
• a black command window pops up and disappears (one time I saw some red letters for a few ms but can't make a screenshot)
• no update has been applied

Both of them run as administrator.