Dear users, ChimeraX fails to open with multiple installation versions. The error with debug option that is shown is the following: Starting main interface Toolshed: find_bundle ChimeraX-Toolbar True None Toolshed: find_bundle ChimeraX-Toolbar True None Toolshed: find_bundle ChimeraX-Toolbar True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-Shortcuts True None Toolshed: find_bundle ChimeraX-SelInspector True None Toolshed: AvailableBundleCache.load: toolshed_url https://cxtoolshed.rbvi.ucsf.edu Toolshed: AvailableBundleCache.load: url https://cxtoolshed.rbvi.ucsf.edu/bundle/?uuid=e42ced0f-7162-57b1-9d35-4f49e9... Toolshed: find_bundle ChimeraX-Core True None Windows fatal exception: access violation Thread 0x00004b9c (most recent call first): File "C:\Program Files\ChimeraX 1.8\bin\Lib\socket.py", line 836 in create_connection File "C:\Program Files\ChimeraX 1.8\bin\Lib\http\client.py", line 945 in connect File "C:\Program Files\ChimeraX 1.8\bin\Lib\http\client.py", line 1451 in connect File "C:\Program Files\ChimeraX 1.8\bin\Lib\http\client.py", line 979 in send File "C:\Program Files\ChimeraX 1.8\bin\Lib\http\client.py", line 1041 in _send_output File "C:\Program Files\ChimeraX 1.8\bin\Lib\http\client.py", line 1281 in endheaders File "C:\Program Files\ChimeraX 1.8\bin\Lib\http\client.py", line 1332 in _send_request File "C:\Program Files\ChimeraX 1.8\bin\Lib\http\client.py", line 1286 in request File "C:\Program Files\ChimeraX 1.8\bin\Lib\urllib\request.py", line 1348 in do_open File "C:\Program Files\ChimeraX 1.8\bin\Lib\urllib\request.py", line 1391 in https_open File "C:\Program Files\ChimeraX 1.8\bin\Lib\urllib\request.py", line 496 in _call_chain File "C:\Program Files\ChimeraX 1.8\bin\Lib\urllib\request.py", line 536 in _open File "C:\Program Files\ChimeraX 1.8\bin\Lib\urllib\request.py", line 519 in open File "C:\Program Files\ChimeraX 1.8\bin\Lib\urllib\request.py", line 216 in urlopen File "C:\Program Files\ChimeraX 1.8\bin\Lib\site-packages\chimerax\core\toolshed\available.py", line 62 in load File "C:\Program Files\ChimeraX 1.8\bin\Lib\site-packages\chimerax\core\toolshed\__init__.py", line 467 in reload_available File "C:\Program Files\ChimeraX 1.8\bin\Lib\threading.py", line 975 in run File "C:\Program Files\ChimeraX 1.8\bin\Lib\threading.py", line 1038 in _bootstrap_inner File "C:\Program Files\ChimeraX 1.8\bin\Lib\threading.py", line 995 in _bootstrap Current thread 0x00005d04 (most recent call first): File "C:\Program Files\ChimeraX 1.8\bin\Lib\site-packages\chimerax\ui\gui.py", line 315 in event_loop File "C:\Program Files\ChimeraX 1.8\bin\Lib\site-packages\chimerax\core\__main__.py", line 1003 in init File "C:\Program Files\ChimeraX 1.8\bin\Lib\site-packages\chimerax\core\__main__.py", line 1166 in <module> File "<frozen runpy>", line 88 in _run_code File "<frozen runpy>", line 198 in _run_module_as_main Any suggestion? Thanks