When I use disguise module on sentry, after few minutes it will look like normal.

Can you please elaborate on which block you have added to the disguise module, and when the disguise disappears? Do you stay next to the sentry, do you go away? If the latter, how far are you going away, does the sentry get unloaded? If you come back, is the disguise still there or is it immediately gone?

I added to the disguise module one modded item and grass block, I go away, on every sentry it disapperar at different time. Sometimes disguise module there is, sometimes not. I have this mod on server, and it doesn't show to another player, but it does to me. On some sentrys it never disappears.

Which SecurityCraft version are you using?

1.9.6.1.

Hmm, I can't seem to reproduce this. On a server, no matter how far I go away, if I relog, add the module with a second player while far away/offline, I can always see the disguise of the sentry. Do you have any other mods installed, and if so which? There may be a conflict here.

Alex's mobs, Architectury, Awesome dungeon, Awesome dungeon nether edition, YUNG's Better Dungeons, Better end forge, Oh The Biomes You'll Go, Caelus, Carry on, Citadel, Cloth config, Curios, Cyclic, Easier Sleeping (server only), Everlasting Skins (server only), Goblin traders, Gravestone, Ice and fire, Just Enough Items, Library Ferret, Luggage, Macaw's furniture, Origins forge, Serene Seasons, Spartan Weaponry, Spartan Weaponry: Ice and fire, Upgraded core, Upgraded netherite spartan weaponry, Upgaded Netherite Ultimerite, Upgraded netherite, Void totem, Waystones, World Edit (server only), Xaero's minimap and worldmap (both client only), YUNG's API

What was the cause? We would like to fix it if possible.