Strange problem with Monster Replacement

[Hidden Hands]

I am running my mod with GZDoom and FREEDOOM2, and I'm having a problem I can't figure out. I have made replacement monsters for the DEMON/FleshWorm and the REVENANT/DarkSoldier. But something weird is happening. When I boot up the mod, they are still what they used to be - the Dark Soldier and the Flesh Worm. Why is this happening? It makes absolutely no sense because SOME demon/flesh worm replacements work fine - in the same level as others that do not. So sometimes I am attacked by a demon/flesh worm other times my custom monster AT THE SAME TIME. What on Earth is going on?

Also, my REVENANT/Dark Soldier monster replacement has another mental side effect - it appears as the graphics for the BESERK pack now. WHAT THE?

Thanks in advance.

[Hellser]

We can't help you unless you share the wad/pk3 that you're working on. But it sounds like you have some sprite conflicts going on here.

[ramon.dexter]

Sprite duplicates? This sounds like sprite duplicates.

[osjclatchford]

Had you recently been using Slade to edit said mod and made the mistake that I did and not save properly and run doom while the was/pk3 is still open in Slade in the background. Done that once and the entire mod got funted. Everything was all swapped around and when I opened the file all the text lumps were all wrong and corrupted somehow some even had the complete wrong text in a file from another pk3 altogether. Dark magic, I know, but I just thought I'd throw it out there in case it's the same deal here. Just to let you know it can happen really.

But, yeah it sounds like you have conflicting sprite names for sure...

[ramon.dexter]

osjc...: Well, most of the time during editing, I have side-by-side opened gzdoombuilder and slade. While I test, I never turn off slade, nor close the opened pk3 and I never had any problems.

[Hidden Hands]

After checking every single sprite it turned out one of my monsters 4 letter code name was PSTR - Same as the beserk pack. Fixed it with a rename. Thanks for all the input everyone.