08/03/2025 and still not working... any news about it @BIGNEWY? I guess it can be easily fixed in a future update
Temporary Solution:
Create a blank file named "JATOConts.lua".
Replace the existing file of the same name located in:
C:\Program Files\Eagle Dynamics\DCS World\CoreMods\aircraft\AircraftWeaponPack
You can use a mod manager for this.
Backup the original file before making any changes, just in case.
Pros:
You will be able to use SPRD-99 / RATO without issues.
Cons:
If the multiplayer server has "Pure Clients" enabled, you might get banned or restricted.
This workaround works wiith no issues in Single Player mode