I have now develop this issue as was reported before your 1.2 fix for this.
if I add a checkpoint then my start point disappears then vice versa, if I add a start point my checkpoints disappear....
This just started this morning for me when I moved the start arrow to test a section later in the level. I had 10 player checkpoint arrow in and when I moved the start arrow all the player arrow went away.
Came to the thread and seen you had made a fix for that. download and installed and cleared dbo and bin files from all folders in FPSC.
Same thing with an existing map being mine or your, as soon as I place any of the arrow icons, all the other go away.
Redownload your fixed installer 1.2 and there was a file size difference and installed on top of the earlier 1.2 update and tried again after clearing dbo and bin files. Same result on existing and new maps.
Now to add to that. I was noticing that the check point arrows did not work proper as I started using them with the 1.1 nomad mode update. I am using what s4real calls version v1.20.19_beta_v1.14, since I use no dark AI, did not need the issues that those fixes would cause my custom character scripts and rigs.
What would happen is that if killed you always go back to start. Since I block passages after use and utilized player check points to control player respawn, you can see the issue here is a show stopper.
That was the behavior until this morning when now placing any arrow destroys the other. And the life and health and weapon huds don't show either now.
Please advise on this, thank you. Your mod is still awesome. Just a hiccup.
Don't look like it does this with build games looking at the video above.
Edit: Hm, Ok, So after a reboot things seem to come back to normal and the arrows are working. I had saved the map so I will reset all the arrows and try again. Will keep you posted.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 4gb RAM, Nvidia gtx660, Windows 7 Pro 64bit