[Dungeons] Unable to enter dungeon instances

[Learnos]

I've been having a problem when I try to walk into the portal to enter dungeon instances, nothing happens. I just walk through it and I can't enter dungeons. It doesn't even report anything to me in chat, it just doesn't respond to me walking into it. Have you any idea what can be causing this and how to fix it?

Just be clear, I am able to enter dungeons through Random Dungeon Finder, but when I've tried doing mythic dungeons with my guild, this problem occured. So far, I've tested the issue on all difficulties for Eye of Azhara, Darkheat Thicket and Maw of Souls instance entrences. I however, can enter older dungeons before Legion.

I've thought this might be happing because I am using a version of WoW that I downloaded from the f******-WoW private server that is also 7.1.5. Today I downloaded the whole game of WoW from WoW-Freakz website, and tried to run it with your launcher, thought it said that it had been damaged. I also tried to fix it with the three steps that are posted on the website, though that did not help either. Could this problem even happen if it is the right and working version of the game? I also have two friends of mine using the same version from f****** that are able to enter dungeons.

Here is an screenshot as a proof:
https://i.imgur.com/XemNyQg.jpg

The picture shows me standing in the portal that is used to enter Eye of Azhara.

[Mayaku]

I have the same problem as well. Only takes place in Legion Instances, every other Dungeon works. This also applies to when i enter via Random Dungeon Finder and want to go out. Also happened at Eye of Aszhara Entrance.

Update @ 02-09-2017, 18:22:34

Okay Problem solved by clearing the CACHE folder a guildmate told me this