Broken Doors and Menus

[PankakeBatter]

On a server, in survival mode, if you open or close double doors while in an animation with a gun from Timeless and Classics Guns, the doors break permanently and the player in question cannot interact with seemingly arbitrary blocks (ie, Crafting Table, Crafting Grid, a random selection of Chests, etc). Relogging does not fix the issue, nor does restarting Minecraft or reinstalling the modpack. I believe the issue is with the server's player data. Any attempts to interact with the glitched doors or the space they occupy (or occupied, in the event the doors are removed), will result in blocks vanishing temporarily. If a door is placed in that space, that door and possibly all doors within its stack will become glitched as well. It would be highly appreciated if this issue could be identified and resolved in a timely manner, as I cannot play on this server until it's fixed.
EDIT: The issue has "infected" other players partially (some have bugged doors, others can't interact with utility blocks). The issue seems to completely disappear if the affected players have operator access.