Capturing Building Blocks since update?

Hello,

Im trying to fix the TwigsDecay mod, its been a while and im quite sure these lines of code is causing the issue. Anyone able to help?

Code:

        void OnTick() {
            if (!initialized)
                return;
            var now = DateTime.Now;
            if (lastUpdate > now.AddMinutes(-timespan))
                return;
            lastUpdate = now;
            int blocksDecayed = 0;
            int blocksDestroyed = 0;
             var allBlocks = UnityEngine.Object.FindObjectsOfType<BuildingBlock>();
            int amount;
            foreach (var block in allBlocks) {
                if (block.isDestroyed)
                    continue;
                string grade;
                string name;
                try {
                    grade = block.grade.ToString();
                    name = block.blockDefinition.fullName.Substring(29); // foundation.prefab
                } catch (Exception) {
                    continue;
                }
                if (!blocks.Contains(name))
                    continue;
                if (damage.TryGetValue(grade, out amount) && amount > 0) {
                    ++blocksDecayed;
                    if (!decay(block, amount))
                        ++blocksDestroyed;
                }