Yes, i tried to install 64bit version of tModLoader. Well, i'll wait for an update then, thanks for the replyAre you attempting to run 1.4 with Tmodloader? If so, then that's the issue, Tmodloader(32bit or 64bit) isn't compatible with Terraria 1.4. If you downloader Tmodloader from Steam and replaced the Tmodloader Steam with Tmodloader 64bit, that won't work either. You need @Dradonhunter11 to update his Tmodloader branch first before you can do anything.