Because I couldn't seem to find a complete list of all path-blocking, walkable items anywhere on the forum I thought of making one myself real quick.
Most of the lists on the forum either miss quite a lot of items, list too many (some of which are not even walkable or do not block your path), are outdated or leave items out judging by their sprites (e.g. 8823 - 8859 being no teleports and therefore have to be on the list).
I never understood the reason behind the end-user having to update these special items on their own to make the bot fully functional, if the bot itself could just use the dat flags to automatically do that, but well here is the list.
Updated for Tibia 11.21 / Tibia 11
PLEASE NOTE: Red IDs on the image indicate that these are harmful towards characters. In addition to that, all items that change the character's location such as stairs, teleports etc. aswell as others that have a similar functionality attached are not on the list.
105, 140, 404, 477, 611, 620, 621, 623, 624, 831, 832, 833, 834, 867, 1998, 1999, 2000, 2118, 2119, 2121, 2122, 2123, 2124, 2126, 2127, 2131, 2132, 2134, 2135, 2137, 2138, 2140, 2314, 2315, 2316, 2319, 2346, 2347, 2348, 2349, 2350, 2351, 2352, 2353, 2354, 2355, 2356, 2357, 2358, 2359, 2360, 2361, 2362, 2363, 2364, 2365, 2366, 2367, 2368, 2369, 2370, 2371, 2372, 2373, 2374, 2375, 2376, 2377, 2378, 2379, 2380, 2381, 2382, 2383, 2384, 2385, 2402, 2403, 2404, 2405, 2406, 2407, 2408, 2409, 2410, 2411, 2412, 2413, 2414, 2415, 2416, 2417, 2418, 2419, 2420, 2421, 2422, 2423, 2424, 2425, 2426, 2431, 2432, 2433, 2434, 2441, 2442, 2443, 2444, 2469, 2471, 2472, 2473, 2478, 2480, 2481, 2482, 2483, 2484, 2485, 2486, 2519, 2523, 2775, 2776, 2777, 2778, 2779, 2780, 2781, 2782, 2783, 2784, 2785, 2786, 2787, 2788, 2789, 2790, 2791, 2792, 2793, 2794, 2795, 2796, 2797, 2798, 2799, 2800, 2801, 2802, 2803, 2804, 2805, 2806, 2807, 2808, 2809, 2810, 2811, 2812, 2981, 2983, 2984, 2985, 2987, 2988, 3503, 3504, 3514, 3652, 3666, 4054, 5086, 5087, 5088, 5463, 5674, 5675, 5915, 5916, 6114, 6115, 6116, 6117, 6355, 6356, 6357, 6358, 6359, 6360, 6361, 6362, 6371, 6372, 7160, 7161, 7162, 7163, 7164, 7165, 7166, 7169, 7170, 7266, 7267, 7288, 7864, 8519, 8520, 8521, 8522, 8529, 8530, 8763, 8823, 8824, 8825, 8859, 9061, 9062, 9100, 9630, 10181, 10182, 10207, 10209, 10216, 10286, 10287, 10288, 10978, 10979, 11010, 11011, 11012, 11013, 11540, 11797, 11798, 11799, 11800, 11801, 11802, 11803, 11804, 11805, 11806, 11807, 11808, 11809, 11810, 12020, 12021, 12022, 12477, 12573, 12636, 12637, 12638, 12639, 12743, 12796, 13646, 13650, 13969, 14237, 14741, 14756, 15151, 15152, 15153, 15154, 15155, 16173, 17152, 17359, 17360, 17361, 17362, 17363, 17364, 17365, 17366, 17367, 17807, 17808, 17972, 17974, 17975, 17977, 19113, 19114, 19116, 19200, 21152, 21300, 21391, 21462, 21463, 21465, 21500, 21842, 22076, 22077, 22164, 22165, 23366, 23403, 23404, 23405, 23406, 23407, 23408, 23409, 23410, 23411, 23414, 23417, 23418, 23423, 23424, 23425, 23426, 23427, 23428, 23429, 23430, 23456, 23457, 23458, 23459, 23460, 23473, 24512, 24525, 24526, 24527, 24528, 24794, 24861, 24862