ISP: 1&1
Type of Internet Connection: ADSL
Internet Connection Speed: 3500kbps
Date & Time: anytime
Frequency: random
Character Name: Crim Soukyuu
Race: Dunesfolk Lalafell
World: Trabia
Class/Level: N/A
Area and Coordinates: N/A
Party or Solo: N/A
In-Game Time: anytime
Steps:
1. create a macro with more than three lines and at least one command
2. execute said macro
3. lines will be randomly skipped

This has been happening ever since the removal of text input delay for non-chat input (=commands). It's especially annoying on macros like gear change where certain items are skipped or on macros with /wait commands.

For example a simple Ifrit Hellfire countdown macro:
Code:
hellfire in 60 seconds
/wait 30
hellfire in 30 seconds
/wait 20
hellfire in 10 seconds
/wait 7
hellfire in about 3 seconds, WATCH IFRIT
is usually skipping the "/wait 30" or "/wait 7" command for me