Critical Error: System.Exception: Don't know how to instantiate block of class 'BlockFirebrickKilnF

Running on 64 bit Windows with 65442 MB RAM
Game Version: .net7 Experimental build - v1.18.6 (Unstable)
7/2/2023 9:46:56 AM: Critical error occurred
Loaded Mods: aculinaryartillery@1.0.12, ancienttools@1.5.7, autowalk@1.0.2, chiseltools@1.8.4, instruments@1.2.1, mannequinstand@1.0.1, meteoricexpansion@1.2.4, leadroof@1.3.4, primitivesurvival@3.2.4, spyglass@0.4.5, tprunes@1.0.8, temperaturescales@1.0.2, temporalstormgear@1.0.1, volumetricshadingupdated@0.7.2-pre.1, game@1.18.6, wildcraft@1.6.6, altmapiconrenderer@1.1.1, betterfirepit@1.1.1, bodyheatbar@1.0.1, calendar@1.0.0, canmarket@0.3.9, carryon@1.2.0, commonlib@2.1.1, cooperativecombat@1.1.0, expandedfoods@1.6.6, fairplayguardian@1.1.2, hudclock@3.2.1, sailboat@1.1.0, naturalnight@2.0.0, nemi@1.1.0, petai@1.7.10, pixelwaypoints@1.0.0, claywheel@1.1.0, prospectorinfo@4.3.0, rhadditions@3.0.11, scarecrow@1.2.3, statushud@1.3.1, stonebakeoven@1.0.3, targetDotMedium@1.1.0, creative@1.18.6, vsquest@0.4.1, survival@1.18.6, waypointcolours@1.1.0, xlib@0.7.4, bullseye@2.5.0-rc.1, cats@1.7.0, doffanddonagain@3.0.0, em@2.2.1, playercorpse@1.7.1, rifteye@0.2.3, simplewinddirection@1.0.2, stonequarry@3.0.1, wolftaming@1.7.3, xinvtweaks@1.5.3, xskills@0.7.4, bricklayers@2.2.0
System.Exception: Don't know how to instantiate block of class 'BlockFirebrickKilnFlue' did you forget to register a mapping?
   at Vintagestory.Common.ClassRegistry.CreateBlock(String blockClass) in C:\Users\Tyron\Documents\vintagestory\game-net7\VintagestoryLib\Common\ClassRegistry.cs:line 129
   at Vintagestory.Common.BlockTypeNet.ReadBlockTypePacket(Packet_BlockType packet, IWorldAccessor world, ClassRegistry registry) in C:\Users\Tyron\Documents\vintagestory\game-net7\VintagestoryLib\Common\Network\BlockTypeNet.cs:line 399
   at Vintagestory.Client.NoObf.ClientSystemStartup.PopulateBlocks(Block[] blocks, Int32 start, Int32 maxCount) in C:\Users\Tyron\Documents\vintagestory\game-net7\VintagestoryLib\Client\Systems\Startup.cs:line 546
   at Vintagestory.Client.NoObf.ClientSystemStartup.LoadBlockTypes() in C:\Users\Tyron\Documents\vintagestory\game-net7\VintagestoryLib\Client\Systems\Startup.cs:line 363
   at Vintagestory.Client.NoObf.ClientSystemStartup.HandleServerAssets_Step1() in C:\Users\Tyron\Documents\vintagestory\game-net7\VintagestoryLib\Client\Systems\Startup.cs:line 338
   at Vintagestory.API.Common.TyronThreadPool.<>c__DisplayClass12_0.<QueueTask>b__0(Object a) in C:\Users\Tyron\Documents\vintagestory\game-net7\VintagestoryApi\Common\TyronThreadPool.cs:line 115
   at System.Threading.QueueUserWorkItemCallback.Execute()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
   at System.Threading.PortableThreadPool.WorkerThread.WorkerThreadStart()

Event Log entries containing Vintagestory.exe, the latest 3
==================================
{ TimeGenerated = 7/2/2023 9:45:03 AM, Site = , Source = Windows Error Reporting, Message = Fault bucket 1880357656339671929, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0

Problem signature:
P1: Vintagestory.exe
P2: 1.18.6.0
P3: 638f99ee
P4: openal32.dll
P5: 1.23.0.0
P6: 63dd31ad
P7: 40000015
P8: 00000000000df046
P9:
P10:

Attached files:
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER292E.tmp.WERInternalMetadata.xml

These files may be available here:
\\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_Vintagestory.exe_429d1884e4154ce84ac24791dbb411b784966a1e_a47ecedf_5be779a8-632e-4b75-97e4-edfc09902256

Analysis symbol:
Rechecking for solution: 0
Report Id: 3095c553-bd99-4a3d-bcfa-4864f0ea7938
Report Status: 268566528
Hashed bucket: 0e6a3f4f1527bf7a2a185f536ccfeb79
Cab Guid: 0 }
--------------
{ TimeGenerated = 7/2/2023 9:45:02 AM, Site = , Source = Windows Error Reporting, Message = Fault bucket , type 0
Event Name: APPCRASH
Response: Not available
Cab Id: 0

Problem signature:
P1: Vintagestory.exe
P2: 1.18.6.0
P3: 638f99ee
P4: openal32.dll
P5: 1.23.0.0
P6: 63dd31ad
P7: 40000015
P8: 00000000000df046
P9:
P10:

Attached files:

These files may be available here:
\\?\C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_Vintagestory.exe_429d1884e4154ce84ac24791dbb411b784966a1e_a47ecedf_5be779a8-632e-4b75-97e4-edfc09902256

Analysis symbol:
Rechecking for solution: 0
Report Id: 3095c553-bd99-4a3d-bcfa-4864f0ea7938
Report Status: 131076
Hashed bucket:
Cab Guid: 0 }
--------------
{ TimeGenerated = 7/2/2023 9:45:00 AM, Site = , Source = Application Error, Message = Faulting application name: Vintagestory.exe, version: 1.18.6.0, time stamp: 0x638f99ee
Faulting module name: openal32.dll, version: 1.23.0.0, time stamp: 0x63dd31ad
Exception code: 0x40000015
Fault offset: 0x00000000000df046
Faulting process id: 0x4408
Faulting application start time: 0x01d9acf36fe8c256
Faulting application path: C:\games\Vintagestory\Vintagestory.exe
Faulting module path: C:\games\Vintagestory\Lib\openal32.dll
Report Id: 3095c553-bd99-4a3d-bcfa-4864f0ea7938
Faulting package full name:
Faulting package-relative application ID:  }