Patch that possibly fixes the missing UBO error I was getting with Blender

missing_UBO.patch

diff --git a/source/blender/draw/intern/draw_manager_exec.c b/source/blender/draw/intern/draw_manager_exec.c
index 8e712295b61..dc02ec792f4 100644
--- a/source/blender/draw/intern/draw_manager_exec.c
+++ b/source/blender/draw/intern/draw_manager_exec.c
@@ -859,6 +859,10 @@ static void bind_ubo(GPUUniformBuffer *ubo, char bind_type)
  *
  * See T55475.
  * */
+
+static GLuint debug_buffer = 0;
+static GLint debug_buffer_size = 0;
+
 static bool ubo_bindings_validate(DRWShadingGroup *shgroup)
 {
   bool valid = true;
@@ -879,13 +883,35 @@ static bool ubo_bindings_validate(DRWShadingGroup *shgroup)
 
     if (buffer == 0) {
       char blockname[64];
+      GLint data_size = 0;
       glGetActiveUniformBlockName(program, i, sizeof(blockname), NULL, blockname);
+      glGetActiveUniformBlockiv(program, i, GL_UNIFORM_BLOCK_DATA_SIZE, &data_size);
+
+      if (debug_buffer == 0) {
+        glGenBuffers(1, &debug_buffer);
+        debug_buffer_size = 0;
+      }
 
+      if (debug_buffer_size < data_size) {
+        debug_buffer_size = data_size;
+        glBindBuffer(GL_UNIFORM_BUFFER, debug_buffer);
+        glBufferData(GL_UNIFORM_BUFFER, debug_buffer_size, NULL, GL_DYNAMIC_DRAW);
+        glBindBuffer(GL_UNIFORM_BUFFER, 0);   
+      }
+
+      // Update binding.  GL_MAX_UNIFORM_BUFFER_BINDINGS is at least 36.
+      if (binding == 0)
+      {
+        binding = 35;
+        glUniformBlockBinding(program, i, binding);
+      }
+      glBindBufferBase(GL_UNIFORM_BUFFER, binding, debug_buffer);
+      /*
       if (valid) {
         printf("Trying to draw with missing UBO binding.\n");
         valid = false;
       }
-
+      */
       DRWPass *parent_pass = DRW_memblock_elem_from_handle(DST.vmempool->passes,
                                                            &shgroup->pass_handle);