Total Commander

If I navigate through folders until reaching some depth, the Directory History list doesn't show all entries.

Example: I've navigated one level at a time, from C:\ to C:\Windows\System32\drivers\etc, then navigated back with [Alt]+[LeftArrow] (= "cm_GotoPreviousDir"). Here are the displayed Directory History at each level, navigating forward with [Alt]+[RightArrow] (= "cm_GotoNextDir") and showing Directory History with [Alt]+[DownArrow]:

Image: https://imgur.com/a/IaBzjDN

Image: https://imgur.com/rICWvRY

Image: https://imgur.com/7T0pOss

Image: https://imgur.com/0KR3TC8

Image: https://imgur.com/qR2lFpz

Environment:
[*]Windows 10 x64 Professional (v. 2004)
[*]Total Commander x64 v. 9.51

Das Verhalten ist normal. Du hast ja sicher auch die entsprechende Option eingeschaltet.

Konfigurieren - Operation: [x] Verzeichnisverlauf ausdünnen
Verzeichnis nur dann im Verzeichnisverlauf (Alt+Pfeil ab) anzeigen, wenn es für mindestens x Sekunden angezeigt wurde, oder der Benutzer eine Dateioperation darin gestartet hat. Der ungefilterte Verlauf kann mit Alt+Umsch+Pfeil ab weiterhin angezeigt werden.

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The behavior is just normal. You may have enabled the according option.

Configuration - Options - Operation: [x] Directory history thinning
Only add directory to the directory history (Alt+Cursor down) if the user stayed there for a certain amount of seconds (default 5), or started any file operation in that location. The unfiltered list can still be shown with Alt+Shift+Cursor down.

2amach
If disabling the option "Configuration" -> "Options..." -> "Operation" -> "Main program" -> "Directory history thinning" as suggested by sqa_wizard does not give the result you want, then try with these settings in the [Configuration] section of your wincmd.ini file:

Help wrote:HistoryAppend=1 1= Appends the directory selected from the history list (ALT+Cursor down) to the end of the history list (default)
0= Moves the current position in the history list to the selected item
HistoryCut=1 1= Cut history list at current position when changing directory while history position not at the end
HistoryThinning=1 Only add directory to history if the user stayed there for x seconds, or performed any file operation in that location
HistoryThinningDelta=5000 Number of Milliseconds to stay in a directory to keep it in the history. 0=only for file operations.

When using history thinning, Alt+Cursor down or click on the history button only shows directories where you stayed a bit longer, or started some kind of file operation.

To temporarily view all history entries even with thinning enabled, use Alt+Shift+Cursor down, or Shift+click on history button.

Disabling History Thinning option did the trick. But I've never set that up, it may be set automatically by some version upgrade.

2amach

But I've never set that up, it may be set automatically by some version upgrade

It has been enabled by default since the introduction of the setting in TC 9.50b1

It was mentioned in the "Help" -> "Introduction" -> "What's new in this version" -> "New functions and fixes in Total Commander 9.50 beta 1:" -> "User Interface:" -> "- History: Only show directories in which the user performed some operation (configurable). Alt+Shift+Down arrow shows full history"